Larger period-2 oscillators
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 | |
---|---|---|---|---|
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Cis-beacon on anvil | 25th most common oscillator on Catagolue | xp2_0c813z255d1e8 | 5 |
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Monotub spark coil | 54th most common oscillator on Catagolue | xp2_gbhewehrz01 | 6 |
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Blocks on griddle | 65th most common oscillator on Catagolue | xp2_rb88brz0103 | 5 |
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Cis-beacon down on trans-mango-with-long-leg | 78th most common oscillator on Catagolue | xp2_gwci96zh15dz11 | 7 |
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Pond on griddle | 84th most common oscillator on Catagolue | xp2_06996z31d153 | 6 |
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Griddle and cap | 89th most common oscillator on Catagolue | xp2_c8b8acz3553 | 6 |
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Cis-beacon up on boat-tie-long-bookend | 94th most common oscillator on Catagolue | xp2_xohf0318cz253 | 7 |
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Tredecapole | Barberpole of rotor size 13 | xp2_y6g0k053zy280a02zg0k0501z11 | 18 |
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By flops with two cavities | Included in Dean Hickerson's oscillator stamp collection as an example of -c+e kinetic symmetry | xp2_8ilhmgz14a86 | 20 |
20 cells
There are 2 722 period-2 oscillators in total with a minimum population of 20.[2]
Oscillator | Notes | apgcode | Cost in gliders | |
---|---|---|---|---|
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xp2_69b8baiczx32 | 47th most common oscillator on Catagolue | xp2_69b8baiczx32 | 5 |
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xp2_69b8b9iczx32 | 61st most common oscillator on Catagolue | xp2_69b8b9iczx32 | 6 |
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Claw test tube baby | 96th most common oscillator on Catagolue | xp2_3542sws2453zy111 | 8 |
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xp2_ci9b8brzw103 | 90th most common oscillator on Catagolue | xp2_ci9b8brzw103 | 6 |
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xp2_ciab8brzw103 | 91st most common oscillator on Catagolue | xp2_ciab8brzw103 | 9 |
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2.3.5 | Included in Dean Hickerson's oscillator stamp collection as an example of .k+k 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 | |
---|---|---|---|---|
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Griddle and dock | xp2_0c8b8acz651156 | 6 | |
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Mango with beacon on dock | 24th most common p2 oscillator on Catagolue | xp2_wgj1u0og26z25421 | 5 |
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 | |
---|---|---|---|---|
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2.4.2 | Included in Dean Hickerson's oscillator stamp collection as an example of n.c kinetic symmetry Discoverer: DRH, 1993-05-20[3] |
xp2_0ml1ik8z1259a6 | 16 |
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 | |
---|---|---|---|---|
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Boat tie spark coil | 45th most common oscillator on Catagolue | xp2_xrhewehrz253 | 5 |
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Light bulb | Had a wiki page since 2009, discovered 1972[3] | xp2_3p606p3z0c95d | 23 |
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2.4.5 | Included in Dean Hickerson's oscillator stamp collection as an example of /xc 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 | |
---|---|---|---|---|
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2.5.3 | 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 | |
---|---|---|---|---|
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2.2.5 | Included in Dean Hickerson's oscillator stamp collection as an example of n-c kinetic symmetry Discoverer: DRH, 1993-04-20[3] |
xp2_466t186z6961696 | 17 |
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2.3.6 | Included in Dean Hickerson's oscillator stamp collection as an example of .kxk kinetic symmetry | xp2_0c4ocb0sz70q6346 | 22 |
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 | |
---|---|---|---|---|
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2.2.6 | Included in Dean Hickerson's oscillator stamp collection as an example of .c+c kinetic symmetry Discoverer: DRH, 1993-04-23[3] |
xp2_g8j1cdj8gz01cb38c1 | 12 |
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2.4.6 | Included in Dean Hickerson's oscillator stamp collection as an example of .crc 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 | |
---|---|---|---|---|
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2.3.4 | Included in Dean Hickerson's oscillator stamp collection as an example of n.k 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 | |
---|---|---|---|---|
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Revolver | Had a wiki page since 2009 Discoverer: MDN, 1972[5] |
xp2_1784k871z045g0a2z8e1221e8 | None listed on Catagolue |
40 cells
The number of period-2 oscillators with a minimum population of 40 is yet to be determined.
Oscillator | Notes | apgcode | Cost in gliders | |||
---|---|---|---|---|---|---|
|
p2 corner dot sparker | xp2_x80kqi3ap3z8u1i7s0511z32011 | None listed on Catagolue |
Greater than 50 cells
Oscillator | Notes | apgcode | Cost in gliders | |||
---|---|---|---|---|---|---|
|
Unnamed catalyst | Catalyses objects with all six red cells on | xp2_0c93s4gkcziu0vhdk04a4z62ap0u3cd1rhc88czx12303552023 | None listed on Catagolue |
Other period-2 oscillator lists
- List of oscillators with 3 to 16 cells (complete; mostly but not all period 2)
- List of period-2 oscillators with 17 cells (top 20 only)
- List of period-2 oscillators with 18 cells (top 20 only)
- Category:Oscillators with period 2 (notable only but regardless of cell count)
References
- ↑ https://conwaylife.com/ref/mniemiec/bits-19.htm#p2-19
- ↑ https://conwaylife.com/ref/mniemiec/bits-20.htm#p2-20
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 Dean Hickerson's oscillator stamp collection. Retrieved on 13 November 2020.
- ↑ https://conwaylife.com/ref/mniemiec/bits-21.htm#p2-21
- ↑ Robert Wainwright (March 1973). Lifeline, vol 9, page 3.