Life Pseudo-Oscillators

Size in cells: 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | Larger
Cost in gliders: 4 | 5 | 6 | unknown



The 1 ten-bit pseudo-oscillator

10b posc

Block on beacon [4]


The 2 eleven-bit pseudo-oscillators

11-bit posc

Up boat on beacon [4] Down boat on beacon [6]


The 14 twelve-bit pseudo-oscillators

12-bit pseudo-oscillators

Up toad on toad [5] Down toad on toad [6] Up ship on beacon [6] Up cis carrier on beacon [7] Up snake on beacon [8] Up trans carrier on beacon [7] Up cis beacon on beacon [6]
Down snake on beacon [7] Down ship on beacon [6] Block on bipole [7] Beehive on beacon [5] Down trans carrier on beacon [7] Down cis carrier on beacon [7] Down cis beacon on beacon [6]


The 17 thirteen-bit pseudo-oscillators

13-bit pseudo-oscillators

Up beacon below eater [7] Up long boat on beacon [6] Down beacon above eater [5] Up beacon on eater [7] Up trans python on beacon [10] Up cis python on beacon [10] Up boat on bipole [6] Up loaf on beacon [6] Down loaf on beacon [6]
Down trans python on beacon [10] Down beacon below eater [7] Down beacon on eater [7] Down long boat on beacon [6] Block on tripole [9] Up boat on bipole [8] Up beacon above eater [5] Down cis python on beacon [10]  


The 46 fourteen-bit pseudo-oscillators

14-bit pseudo-oscillators


The 78 fifteen-bit pseudo-oscillators

15-bit pseudo-oscillators


The 227 sixteen-bit pseudo-oscillators

The 225 period 2 pseudo-oscillators are shown on a separate page, while the 2 pseudo-oscillators with higher periods are shown here.

16-bit PP4+

Block on mold [7] Block on penta- decathlon [5]


The 489 seventeen-bit pseudo-oscillators

The 484 period 2 pseudo-oscillators are shown on a separate page, while the 5 pseudo-oscillators with higher periods are shown here.

17-bit PP3+

Block on jam [8] Block beside jam [8] Down boat on mold [8] Up boat on mold [8] Boat on penta- decathlon [5]


The 1543 eighteen-bit pseudo-oscillators

The 1519 period 2 pseudo-oscillators are shown on a separate page, while the 24 pseudo-oscillators with higher periods are shown here.

18-bit PP3+ pseudo-oscillators

Beehive on mold [7] Up ship on mold [9] Up cis carrier on mold [12] Down ship on mold [9] Up boat on jam [8] Down boat on jam [10] Down boat beside jam [10] Up boat beside jam [8] Block on eater eating eater [10]
Up snake on mold [11] Down snake on mold [11] Up trans carrier on mold [12] Up cis beacon on mold [12] Down cis carrier on mold [12] Down trans carrier on mold [12] Down cis beacon on mold [11]   Down toad on figure-8 [7]
Beehive on penta- decathlon [5] Ship on penta- decathlon [6] Cis carrier on penta- decathlon [8] Snake on penta- decathlon [7] Trans carrier on penta- decathlon [7] Beacon on penta- decathlon [6] Up toad on figure-8 [7]


The 3398 nineteen-bit pseudo-oscillators

The 3350 period 2 pseudo-oscillators are shown on a separate page, while the 48 pseudo-oscillators with higher periods are shown here.

19-bit PP3+ pseudo-oscillators

Up ship above jam [10] Up cis carrier above jam [12] beehive above jam [9] Down ship above jam [11] Up snake above jam [12] Down snake above jam [12] Up trans carrier above jam [12] Down trans carrier above jam [12] Up ship beside jam [10] beehive beside jam [9]
Up cis carrier beside jam [12] Down ship beside jam [11] Up snake beside jam [12] Down snake beside jam [12] Up trans carrier beside jam [12] Down cis carrier above jam [12] Down trans carrier beside jam [12] Down cis carrier beside jam [12] Down boat on eater eating eater [11] Up boat on eater eating eater [9]
Up cis python on mold [14] Down loaf on mold [8] Up mold below eater [9] Up long boat on mold [10] Down mold above eater [12] Up mold on eater [9] Up loaf on mold [8] Up trans python on mold [15] Down trans python on mold [15] Down long boat on mold [9]
Down mold below eater [9] Down mold on eater [9] Up mold above eater [12] Down cis python on mold [14]   Block on pseudo- barber- pole [30] Block below pseudo- barber- pole [30]
Up beacon on jam [11] Up beacon below jam [11] Down beacon on jam [11] Down beacon below jam [11] Block on blocker [7]
Cis python on penta- decathlon [8] Loaf on penta- decathlon [6] Eater chin on penta- decathlon [6] Long boat on penta- decathlon [6] Eater tail on penta- decathlon [5] Eater head on penta- decathlon [5] Trans python on penta- decathlon [8]


The 9562 20-bit pseudo-oscillators

These are divided into the following categories:

87 of these (excluding periods 2 and 15) are shown.

20-bit pseudo-oscillators


The 22347 21-bit pseudo-oscillators

These are divided into the following categories:

34 of these (other than periods 3, 4, 5 and 15) are shown.

21-bit pseudo-oscillators

Beehive on beehive on tripole [10] Beacon between gull w/ two long hooks [178] Beacon between shillelagh and up cis python [88] Up bipole on table on cis python [32] Bipole on carrier behind eater [x] Up snake on up beacon above long hook w/ tail [x]
Up cis python on up beacon below bipole [55] Up cis python on up beacon on bipole [55] Up bipole on feather on hook w/ tail [x] Down bipole on long cis integral [18] Down tripole below carrier bridge snake [18]  
Up bipole on jam [13] Up bipole below jam [13] Down boat on unix [8] Up boat on unix [8] Down bipole on jam [13] Down bipole below jam [13]
Up ship on blocker [7] Beehive on blocker [9] Down ship on blocker [7] Down cis carrier on blocker [12] Down snake on blocker [11] Up trans carrier on blocker [13]
Up snake on blocker [11] Down trans carrier on blocker [13] Down cis beacon on blocker [12] Up cis carrier on blocker [12] Up cis beacon on blocker [12] Block on Coe's P8 [11]
Up beacon below pseudo- barber- pole [34] Up beacon on pseudo- barber- pole [34] Down beacon below pseudo- barber- pole [34] Down beacon on pseudo- barber- pole [34] Tripole on penta- decathlon [11]  


The 604+ 22-bit pseudo-oscillators

These are divided into the following categories:

25 of these (of periods 2, 8 and 30) are shown.

22-bit pseudo-oscillators

Boat on beehive on griddle [11] Down tripole on long cis integral [20]  
Up loaf on blocker [9] Down long boat on blocker [9] Down loaf on blocker [9] Down blocker below eater [12] Down trans beacon on blocker [9] Up trans beacon on blocker [9]
Down blocker on eater [12] Up blocker above eater [11] Down trans python on blocker [15] Up trans python on blocker [15] Down cis python on blocker [13] Up long boat on blocker [10]
Up blocker below eater [12] Up blocker on eater [12] Down blocker above eater [11] Up boat on Coe's P8 [11] Up cis python on blocker [14] Down boat on Coe's P8 [11]
Beacon on block on penta- decathlon [8] Block on trans beacon on penta- decathlon [8] Block on penta- decathlon on beacon [8] Block on cis beacon on penta- decathlon [8] Quadpole on penta- decathlon [9]


The 520+ 23-bit pseudo-oscillators

These are divided into the following categories:

33 of these (of periods 2, 10 and 30) are shown.

23-bit pseudo-oscillators

Up bipole on pseudo-barber-pole [35] Down bipole on pseudo-barber-pole [35] Up bipole below pseudo-barber-pole [35] Down bipole below pseudo-barber-pole [35] Up beacon above Silver's P5 on snake [26] Down beacon above Silver's P5 on snake [25]
Up beacon on Silver's P5 on snake [26] Down beacon on Silver's P5 on snake [25] Up beacon below Silver's P5 on snake [27] Down beacon below Silver's P5 on snake [25] Silver's P5 on snake on up beacon [25] Silver's P5 on snake on down beacon [25]
Up beacon above Silver's P5 on carrier [22] Down beacon above Silver's P5 on carrier [20] Up beacon on Silver's P5 on carrier [21] Down beacon on Silver's P5 on carrier [20] Up beacon below Silver's P5 on carrier [21] Down beacon below Silver's P5 on carrier [20]
Silver's P5 on carrier on up beacon [20] Silver's P5 on carrier on down beacon [20] Silver's P5 below carrier on up beacon [24] Silver's P5 below carrier on down beacon [22] Silver's P5 above carrier on up beacon [28] Silver's P5 above carrier on down beacon [23]
Up boat on trans beacon on penta- decathlon [7] Down boat on trans beacon on penta- decathlon [9] Down boat on penta- decathlon on beacon [8] Up boat on penta- decathlon on beacon [8]
Up boat on cis beacon on penta- decathlon [7] Down boat on cis beacon on penta- decathlon [10] Pentapole on penta- decathlon [13] Tripole below paper clip [10] Beacon between gull w/ two very long hooks [137]


The 1521+ 24-bit pseudo-oscillators

These are divided into the following categories:

11 of these are shown.

24-bit pseudo-oscillators

Up beacon on down skewed poles [x+6] Up beacon below down skewed poles [x+7] Down beacon on down skewed poles [x+6] Down beacon below down skewed poles [x+6]
Cis cis quad-beacon [8] Up figure-8 on figure-8 [11] Down figure-8 on figure-8 [8] Penta- decathlon on penta- decathlon #3 [7]
Queen bee between trans block and block on block [6] Queen bee between cis block and block on block [6]   Mold on Penta- decathlon [9]


The 2455+ 25-bit pseudo-oscillators

These are divided into the following categories:

14 of these are shown.

25-bit pseudo-oscillators

Block on 21-bit P4 #1 [x+2] Up beacon on bowed caterer [x+6] Up beacon on fire spitting [x+6] Down beacon on bowed caterer [x+6] Up beacon below bowed caterer [x+12] Up mold above jam [13] Up mold beside jam [13]
Block below 21-bit P4 #1 [x+3] Up beacon below fire spitting [x+7] Down beacon on fire spitting [x+6] Down beacon below bowed caterer [x+8] Down beacon below fire spitting [x+6] Down mold above jam [13] Down mold beside jam [13]


2 pseudo-oscillators 26 bits and larger

larger pseudo-oscillators

Two blocks on spark coil [6] Two beacons on two eaters [10]



3 pseudo-oscillators buildable from 4 gliders

4gl pseudo-oscillators

Block on beacon [4] Up boat on beacon [4] Cis block on beacon on block [4]


17 pseudo-oscillators buildable from 5 gliders

5-glider pseudo-oscillators

Up toad on toad [5] Beehive on beacon [5] Down beacon above eater [5] Up beacon above eater [5] Pond on beacon [5] Trans block and up boat on beacon [5] Cis block and up boat on beacon [5] Trans two up boats on beacon [5] Cis two up boats on beacon [5] Cis two up beacons on beacon [5]
Cis two beehives on beacon [5] Block on penta- decathlon [5] Boat on penta- decathlon [5] Beehive on penta- decathlon [5] Penta- decathlon above eater [5] Penta- decathlon on eater [5] Pond on penta- decathlon [5] Block on block on penta- decathlon [5]


39 pseudo-oscillators buildable from 6 gliders

6-glider pseudo-oscillators

Down boat on beacon [6] Down toad on toad [6] Up ship on beacon [6] Up cis beacon on beacon [6] Down ship on beacon [6] Down cis beacon on beacon [6] Up long boat on beacon [6] Up boat on bipole [6] Up loaf on beacon [6] Down loaf on beacon [6]
Down long boat on beacon [6] Up trans beacon on beacon [6] Trans block on beacon on block [6] Down trans beacon on beacon [6] Block on quad- pole [6] Up boat on block on beacon [6] Down boat on block on beacon [6] Cis block and down boat on beacon beacon [6] Beehive on block on beacon [6] Trans block on beacon on beehive [6]
Cis block on up beacon on beacon [6] Up ship on quad- pole [6] Cis block on beacon on beehive [6] Down eater above block on beacon [6] Trans block on beacon above down eater [6] Trans up boat on beacon on beehive [6] Trans block on beacon above up eater [6] Cis up boat on beacon on beehive [6] Two blocks on spark coil [6]  
Ship on penta- decathlon [6] Loaf on penta- decathlon [6] Penta- decathlon below eater [6] long boat on penta- decathlon [6] Mango on penta- decathlon [6] Boat on block on penta- decathlon [6]  
Beacon on penta- decathlon [6] Queen bee between trans block and block on block [6] Queen bee between cis block and block on block [6]  


The 14 pseudo-oscillators with periods 4 and higher up to 25 bits without any known syntheses

These are all easy to synthesize, but are based on predecessors that do not yet have syntheses. (Not included are the period-2 pseudo-oscillators up to 21 bits or the 158 period-3 pseudo-oscillators up to 25 bits without syntheses.)

unknown pseudo-oscllators

Block on 21-bit P4 #1 [x+2] Up beacon on down skewed poles [x+6] Up beacon below down skewed poles [x+7] Down beacon on down skewed poles [x+6] Down beacon below down skewed poles [x+6] Up beacon on bowed caterer [x+6] Up beacon on fire spitting [x+6]
Block below 21-bit P4 #1 [x+3] Down beacon on bowed caterer [x+6] Up beacon below bowed caterer [x+12] Up beacon below fire spitting [x+7] Down beacon on fire spitting [x+6] Down beacon below bowed caterer [x+8] Down beacon below fire spitting [x+6]



Other pseudo-oscillators by period: 2, 3, 4, 5, 6, 8, 10, 12, 15, 30, 60, other.

Other types: still-lifes, pseudo-still-lifes, oscillators, pseudo-oscillators, oscillators by period, pseudo-oscillators by period, guns, multi-colored Life, basic spaceships and pseudo-spaceships, exotic spaceships, spaceships flotillae, puffers, constellations, methuselahs, not quite stable objects.

See also: Life objects sorted by: counts, frequency of occurrence, cost in gliders, name, size in bits, or type.

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Copyright © 1997, 1998, 1999, 2013, 2014 by Mark. D. Niemiec. All rights reserved.
This page was last updated on 2015-02-19.