Larger period-2 oscillators

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This page is for listing period-2 oscillators with 19 or more cells, several of which are not notable enough for their own pages, but are noteworthy for other reasons.

19 cells

There are 1 083 period-2 oscillators in total with a minimum population of 19.[1]

Oscillator Notes apgcode Cost in gliders
Cisbeacononanvil.png Cis-beacon on anvil 25th most common oscillator on Catagolue xp2_0c813z255d1e8 6
Monotubsparkcoil.png Monotub spark coil 54th most common oscillator on Catagolue xp2_gbhewehrz01 6
Blocksongriddle.png Blocks on griddle 65th most common oscillator on Catagolue xp2_rb88brz0103 5
Cisbeacondownontransmangowithlongleg.png Cis-beacon down on trans-mango-with-long-leg 78th most common oscillator on Catagolue xp2_gwci96zh15dz11 8
Pondongriddle.png Pond on griddle 84th most common oscillator on Catagolue xp2_06996z31d153 8
Griddleandcap.png Griddle and cap 89th most common oscillator on Catagolue xp2_c8b8acz3553 11
Cisbeaconuponboattielongbookend.png Cis-beacon up on boat-tie-long-bookend 94th most common oscillator on Catagolue xp2_xohf0318cz253 12
Tredecapole.png Tredecapole Barberpole of rotor size 13 xp2_y6g0k053zy280a02zg0k0501z11 24
Byflopswithtwocavities.png By flops with two cavities Included in Dean Hickerson's oscillator stamp collection as an example of -f+e kinetic symmetry xp2_8ilhmgz14a86 None listed on Catagolue

20 cells

There are 2 722 period-2 oscillators in total with a minimum population of 20.[2]

Oscillator Notes apgcode Cost in gliders
Xp2 69b8baiczx32.png xp2_69b8baiczx32 47th most common oscillator on Catagolue xp2_69b8baiczx32 5
Xp2 69b8b9iczx32.png xp2_69b8b9iczx32 61st most common oscillator on Catagolue xp2_69b8b9iczx32 9
Clawstesttubebaby.png Claws test tube baby xp2_3542sws2453zy111 8
Xp2 ci9b8brzw103.png xp2_ci9b8brzw103 90th most common oscillator on Catagolue xp2_ci9b8brzw103 12
Xp2 ciab8brzw103.png xp2_ciab8brzw103 91st most common oscillator on Catagolue xp2_ciab8brzw103 10
Xp2 0e0j0944z44i0p0e.png xp2_0e0j0944z44i0p0e Included in Dean Hickerson's oscillator stamp collection as an example of .v+v kinetic symmetry
Discoverer: DRH, 1993-04-23[3]
xp2_0e0j0944z44i0p0e None listed on Catagolue

21 cells

There are 6 596 period-2 oscillators in total with a minimum population of 21.[4]

Oscillator Notes apgcode Cost in gliders
Griddleanddock.png Griddle and dock xp2_0c8b8acz651156 12
20p2.png Mango with beacon on dock xp2_wgj1u0og26z25421 6

22 cells

The number of period-2 oscillators with a minimum population of 22 is yet to be determined.

Oscillator Notes apgcode Cost in gliders
Xp2 0ml1ik8z1259a6.png xp2_0ml1ik8z1259a6 Included in Dean Hickerson's oscillator stamp collection as an example of n.f kinetic symmetry
Discoverer: DRH, 1993-05-20[3]
xp2_0ml1ik8z1259a6 None listed on Catagolue

23 cells

The number of period-2 oscillators with a minimum population of 23 is yet to be determined.

Oscillator Notes apgcode Cost in gliders
Boattiesparkcoil.png Boat tie spark coil xp2_xrhewehrz253 5
Lightbulb.png Light bulb xp2_3p606p3z0c95d 23
Xp2 066oo4g53zc8502046.png xp2_066oo4g53zc8502046 Included in Dean Hickerson's oscillator stamp collection as an example of /xf kinetic symmetry
Discoverer: DRH, 1993-04-23[3]
xp2_066oo4g53zc8502046 None listed on Catagolue

24 cells

The number of period-2 oscillators with a minimum population of 24 is yet to be determined.

Oscillator Notes apgcode Cost in gliders
Xp2 0giligz344k743zw121.png xp2_0giligz344k743zw121 Included in Dean Hickerson's oscillator stamp collection as an example of -e+e kinetic symmetry
Discoverer: DRH, 1973[3]
xp2_0giligz344k743zw121 21

26 cells

The number of period-2 oscillators with a minimum population of 26 is yet to be determined.

Oscillator Notes apgcode Cost in gliders
Xp2 466t186z6961696.png xp2_466t186z6961696 Included in Dean Hickerson's oscillator stamp collection as an example of n-f kinetic symmetry
Discoverer: DRH, 1993-04-20[3]
xp2_466t186z6961696 None listed on Catagolue
Xp2 0c4ocb0sz70q6346.png xp2_0c4ocb0sz70q6346 Included in Dean Hickerson's oscillator stamp collection as an example of .vxv kinetic symmetry xp2_0c4ocb0sz70q6346 None listed on Catagolue

28 cells

The number of period-2 oscillators with a minimum population of 28 is yet to be determined.

Oscillator Notes apgcode Cost in gliders
Xp2 g8j1cdj8gz01cb38c1.png xp2_g8j1cdj8gz01cb38c1 Included in Dean Hickerson's oscillator stamp collection as an example of .f+f kinetic symmetry
Discoverer: DRH, 1993-04-23[3]
xp2_g8j1cdj8gz01cb38c1 None listed on Catagolue
Xp2 2aa08060922zgg50p050lkgzw1.png xp2_2aa08060922zgg50p050lkgzw1 Included in Dean Hickerson's oscillator stamp collection as an example of .frf kinetic symmetry
Discoverer: DRH, 1993-04-23[3]
xp2_2aa08060922zgg50p050lkgzw1 None listed on Catagolue

30 cells

The number of period-2 oscillators with a minimum population of 30 is yet to be determined.

Oscillator Notes apgcode Cost in gliders
Xp2 ca8b8kzwbh2z4l5l4czx1.png xp2_ca8b8kzwbh2z4l5l4czx1 Included in Dean Hickerson's oscillator stamp collection as an example of n.v kinetic symmetry
Discoverer: DRH, 1993-04-20[3]
xp2_ca8b8kzwbh2z4l5l4czx1 None listed on Catagolue

32 cells

The number of period-2 oscillators with a minimum population of 32 is yet to be determined.

Oscillator Notes apgcode Cost in gliders
Revolver.png Revolver Had a wiki page since 2009
Discoverer: MDN, 1972[5]
xp2_1784k871z045g0a2z8e1221e8 None listed on Catagolue

Greater than 50 cells

Oscillator Notes apgcode Cost in gliders
x = 18, y = 16, rule = LifeHistory 5.2A.A2.A$6.A.4A2.2A$4.A.A7.A2.A$2.3A2.6A3.2A$.A6.A3.4A$.6A2.2A.A2.A$ 6.3A.A2.A$.2A.2A7.A.A$A.A.2A.A2.A3.2A$A.A4.A.A.A$.A.2A.2A2.A$3.A3.A$. A2.2A4.3D$.2A.A5.3D$4.A$4.2A! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 4 THUMBSIZE 4 ]]
(click above to open LifeViewer)
Unnamed catalyst Catalyses objects with all six red cells on xp2_0c93s4gkcziu0vhdk04a4z62ap0u3cd1rhc88czx12303552023 None listed on Catagolue

Other period-2 oscillator lists

References