204P41

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204P41
x = 73, y = 61, rule = B3/S23 34bo$32b3o$31bo$16b2o13b2o$17bo$17bobo$18b2o$28bo$27bo$29bo$27b3o4$40b o$5b2o24b2o5bobo$6bo24bo7b2o$4bo13b2o12b3o$2b4o15b2o11bo$bo14b2obo$o2b 3o10b2o3bob2o$b2o2bo10b2obo3b2o$3b2o16bob2o$3bo14b2o$4bo6b3o7b2o26bo$b 3o7bo38b2o$bo5b2o3bo11bo24b2o$8bo14bobo$5b3o15b2o$5bo2$67bo$48b2o15b3o $47bobo14bo$22b2o24bo11bo3b2o5bo$21b2o38bo7b3o$23bo26b2o7b3o6bo$53b2o 14bo$48b2obo16b2o$48b2o3bob2o10bo2b2o$48b2obo3b2o10b3o2bo$53bob2o14bo$ 38bo11b2o15b4o$38b3o12b2o13bo$32b2o7bo24bo$32bobo5b2o24b2o$32bo4$43b3o $43bo$45bo$44bo$53b2o$53bobo$55bo$40b2o13b2o$41bo$38b3o$38bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ WIDTH 650 HEIGHT 520 THUMBSIZE 2 ZOOM 8 GPS 12 ]]
Pattern type Oscillator
Number of cells 204
Bounding box 73 × 61
Period 41
Mod 41
Heat 115.1
Volatility 0.90
Strict volatility 0.90
Discovered by Nico Brown
Year of discovery 2023

204P41 is a period-41 oscillator found by Nico Brown on July 21, 2023, and is the first period-41 oscillator to be discovered.[1][2] It was originally found as 208P41, and the blinker eaters were quickly reduced by two cells each. It was the smallest known period-41 oscillator until the discovery of p41 pi-heptomino hassler.

Its discovery proved that Conway's Game of Life is omniperiodic.

Four copies of the dependent reflector loop can be used to stabilise the vex.[3]

Chris857 and Evin found a 106-glider synthesis of 208P41 the day of its discovery.[4][5] The synthesis was reduced to 104 gliders several hours later.[6][7]

References

  1. Nico Brown (July 21, 2023). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  2. Nico Brown (July 21, 2023). Message in #cgol on the Conwaylife Lounge Discord server
  3. EvinZL (July 21, 2023). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  4. Chris857 (July 21, 2023). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
  5. shinjuku (#4715201417) (July 21, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.
  6. KtT (July 22, 2023). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
  7. shinjuku (#4718779770) (July 22, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.

External links