Achim's p144

Achim's p144 is a period-144 oscillator that was found (minus all the blocks) on a cylinder of width 22 by Achim Flammenkamp on July 21, 1994. Dean Hickerson reduced it to a finite form using figure eights the same day. The neater finite form shown here - replacing the figure eights with blocks - was found by David Bell on August 8, 1994.[1]

Achim's p144
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Pattern type Oscillator
Number of cells 42
Bounding box 30×19
Period 144
Mod 72
Heat 31.9
Volatility 1.00
Strict volatility 0.95
Discovered by Achim Flammenkamp
Dean Hickerson
David Bell
Year of discovery 1994

It first appeared semi-naturally on May 2, 2019, in a symmetric soup submitted to Catagolue by carybe.[2]

See factory for a use of this oscillator.

See also


  1. Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
  2. Ian07 (May 26, 2019). Re: Soup search results (discussion thread) at the forums
  • 42P144.1 at Heinrich Koenig's Game of Life Object Catalogs
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