Pentoad 2

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Pentoad 2
x = 12, y = 17, rule = B3/S23 b2o$b2o3$b3o$o$o$bo4b2o$3bo4bo$4b2o4bo$11bo$11bo$8b3o3$9b2o$9b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]]
Pattern type Oscillator
Number of cells 26
Bounding box 17×12
Period 5
Mod 5
Heat 21.6
Volatility 0.87
Strict volatility 0.87
Discovered by Unknown
Year of discovery Unknown

Pentoad 2 is a period 5 oscillator that is shown as the second pattern in the sixth row of Jason Summers' main period 5 collection. It is extensible. The central part is the same as in pentoad.


A 16-glider synthesis was found by Jeremy Tan on March 19, 2019,[1] which was later improved to 12 gliders by Goldtiger997.[2]

See also


  1. Jeremy Tan. Re: Synthesising Oscillators (discussion thread) at the forums
  2. Goldtiger997. Re: Synthesising Oscillators (discussion thread) at the forums

External links

  • 26P5.2 at Heinrich Koenig's Game of Life Object Catalogs