30P25

30P25
x = 20, y = 20, rule = B3/S23 o$3o$3bo$2bo$2bo2bo2$6b2o$7bo$5bobo$4b2o$14b2o$12bobo$12bo$12b2o2$14bo 2bo$17bo$16bo$17b3o$19bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 5 ZOOM 12 LOOP 25 ]]
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Pattern type	Oscillator
Number of cells	30
Bounding box	20×20
Period	25
Mod	25
Heat	28.5
Volatility	0.92
Strict volatility	0.92
Discovered by	Charity Engine
Year of discovery	2022
Rules Outer-totalistic rules B3/S23 – B38/S238 Important rules Conway's Life # of rules 22 = 4 Isotropic rules B3-y/S23-cy – B34ce5c6c8/S234ce5e6ei7e8
Glider synthesis Fewest gliders 14 Catagolue-generated RLE 30p25_synth.rle
Pattern files RLE 30p25.rle
Identifiers apgcode xp25_32aczy0ooj64zy74cp33zyc6a8o

30P25 is a period-25 oscillator discovered by Charity Engine on May 18, 2022 by symmetric soup search. It is composed of an unnamed reaction stabilized by two copies of eater 1. In terms of its 30 cells, it is the smallest known period-25 oscillator, far ahead of the previous record (p25 pre-pulsar shuttle) with 83 cells.

It can be synthesized in 14 gliders. The active region has exactly one 3-glider synthesis, which is used. There are two of these, and each of the two fishhooks requires four gliders, for a total of 14.

It gives off sparks, which allows for the construction of non-trivial higher-period LCM oscillators, shown in the gallery below. However, unlike the similar Jason's p22, its sparks are not strong enough to perturb active regions.

LCM oscillators

The oscillators below are listed due to being the smallest known ones by population, while also satisfying the condition that at least one cell oscillates at the full period.

x = 25, y = 22, rule = B3/S23 19bo$17b3o$16bo$16b2o2$13bo$12b2o$11b2o$14b2o$13b3o$4b3o$4b2o$7b2o$6b 2o11b2o$6bo12bo2bo$15bo4bo3bo$2b2o12b2o3bob2o$3bo$3o9b2obo3b2o$o11bo3b o4bo$14bo2bo$16b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 25 LOOP 50 THUMBSIZE 2 ZOOM 12 HEIGHT 450 ]] p50 with 24P10 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here	x = 20, y = 25, rule = B3/S23 o$3o$3bo$2b2o2$5bo$3b2ob2o2$7bo$3b2o2bo6bo$5bo6bo2b2o$12bo2$12b2ob2o$ 14bo2$16b2o$16bo$17b3o$19bo3$7b8o$7bob4obo$7b8o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 25 LOOP 75 THUMBSIZE 2 ZOOM 12 HEIGHT 450 ]] p75 with pentadecathlon (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here	x = 20, y = 20, rule = B3/S23 18b2o$18bo$16bobo$10bo2bo2b2o$10bo2bo$9bo4bo$13bo$10b2obo5$6bob2o$6bo$ 5bo4bo$6bo2bo6b3o$2b2o2bo2bo4bob3o$bobo9bobobo$bo11bo2bo$2o12b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 25 LOOP 100 THUMBSIZE 2 ZOOM 12 HEIGHT 450 ]] p100 with mold (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here
x = 23, y = 23, rule = B3/S23 2b2o$bobo$3o$2o19b2o$bobo17bo$2bobo2b2o10bobo$3bo2bobo4bo2bo2b2o$4b4o 5bo2bo$5b2o5bo4bo$16bo$13b2obo5$9bob2o$9bo$8bo4bo$9bo2bo$5b2o2bo2bo$4b obo$4bo$3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 25 LOOP 150 THUMBSIZE 2 ZOOM 12 HEIGHT 450 ]] p150 with unix (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here	x = 32, y = 20, rule = B3/S23 12b2o$13bo$13bobo$7b2o5b2o3bo$2b3o2bobo10b2o$2bo2b3obo10b2o$bob3obob2o 5bo3bo3bo$3o2b4o2bo2bobo3bo3b3o$3o7b3o6b2o3b3o$bo2b4o2b3o6b2o4b3o$2b2o bob3obo4b3o4b2o$3bob3o2bo6b3o3b2o$3bobo2b3o6b3o3bo3bobo$4b2o13bo3bo3bo $22b2o$22b2o$24bo3b2o$28bobo$30bo$30b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 25 LOOP 175 THUMBSIZE 2 ZOOM 12 HEIGHT 450 ]] p175 with meatball (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here	x = 29, y = 20, rule = B3/S23 18b2o$18bo$16bobo$12bo3b2o$10b2o$10b2o$7bo3bo3bo5b2o$5b3o3bo3bobo$5b3o 3b2o6bo3bo$4b3o4b2o6bo4bo$7b2o4b3o5bobobo$7b2o3b3o7bobobo$2bobo3bo3b3o 8bo4bo$4bo3bo3bo11bo3bo$8b2o$8b2o15b2o$2b2o3bo$bobo$bo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 25 LOOP 200 THUMBSIZE 2 ZOOM 12 HEIGHT 450 ]] p200 with figure eight (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here
x = 31, y = 28, rule = B3/S23 18b2o$18bo$16bobo$12bo3b2o$10b2o$10b2o$7bo3bo3bo$5b3o3bo3bobo$5b3o3b2o $4b3o4b2o$7b2o4b3o$7b2o3b3o$2bobo3bo3b3o$4bo3bo3bo5bo7bo$8b2o5bo13bo$ 8b2o5bo4bo3bo4bo$2b2o3bo12bo3bo$bobo10bob2obo5bob2obo$bo12b2o3b2o3b2o 3b2o$2o18b5o$21b3o$22bo3$19b2o3b2o$20bo3bo$17b3o5b3o$17bo9bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 25 LOOP 225 THUMBSIZE 2 ZOOM 12 HEIGHT 450 ]] p225 with 48P9 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here	x = 23, y = 25, rule = B3/S23 18b2o$18bo$16bobo$12bo3b2o$10b2o$10b2o$7bo3bo3bo$5b3o3bo3bobo$5b3o3b2o $4b3o4b2o$7b2o4b3o$7b2o3b3o$2bobo3bo3b3o$4bo3bo3bo$8b2o7b3o$8b2o5b3obo $2b2o3bo11bob2o$bobo9bo3b3o2bo$bo11bo2b2o2b2o$2o7b2o3b2o2b2o$9bo2bobob o2bo$11b2o2b4o$12bo$11bo5b2o$11b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 25 LOOP 275 THUMBSIZE 2 ZOOM 12 HEIGHT 450 ]] p275 with p11 domino sparker (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here	x = 25, y = 30, rule = B3/S23 13bobobobo$12bob2ob2obo$10b3o7b3o$9bo4b2ob2o4bo$9bo2b2obobob2o2bo$8b2o bobo5bobob2o$9bobo2b2ob2o2bobo$9bobo3b3o3bobo$10bo11bo2$2o$bo$bobo12bo $2b2o3bo7bobo$8b2o$8b2o5bo3bo$4bo3bo3bo6bo$2bobo3bo3b3o3bo$7b2o3b3o4b 3o$7b2o4b3o5bo$4b3o4b2o$5b3o3b2o$5b3o3bo3bobo$7bo3bo3bo$10b2o$10b2o$ 12bo3b2o$16bobo$18bo$18b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 25 LOOP 325 THUMBSIZE 2 ZOOM 12 HEIGHT 450 ]] p325 with 66P13 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here
x = 20, y = 42, rule = B3/S23 o$3o$3bo$2b2o2$5bo$3b2ob2o2$7bo$3b2o2bo6bo$5bo6bo2b2o$12bo2$12b2ob2o$ 14bo$2bo$2b3o11b2o$5bo10bo$4b2o11b3o$5b3o11bo$6b3o$6b4o$9b2o$9b3o$6b2o bo$6b2o6$6b2o$4bob2o$2b3o$3b2o$4b4o$5b3o$6b3o$8b2o$8bo$9b3o$11bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 25 LOOP 550 THUMBSIZE 2 ZOOM 12 HEIGHT 450 ]] p550 with Jason's p22 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

See also

• 32P21, also found by Charity Engine via rotationally symmetric soup

External links

• 30P25 at Adam P. Goucher's Catagolue