22P36

22P36 is an unnamed period-36 oscillator found by Noam Elkies on January 29, 1995.[1] It consists of two t-tetrominoes being hassled by two eater 1s. The eaters convert two traffic lights into two phi sparks, and then convert them back to t-tetrominoes. In terms of population it is currently the smallest period 36 oscillator.

22P36
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Pattern type Oscillator
Number of cells 22
Bounding box 14×18
Period 36
Mod 36
Heat 19.2
Volatility 0.89
Strict volatility 0.89
Discovered by Noam Elkies
Year of discovery 1995
For the 36-cell period-22 oscillator, see Jason's p22.

It first appeared semi-naturally in July or August 2017, in a symmetric soup submitted to Catagolue by Moth Wingthane.[2]

References
  1. Dean Hickerson's oscillator stamp collection. Retrieved on June 16, 2009.
  2. Apple Bottom (August 1, 2017). Re: Soup search results (discussion thread) at the ConwayLife.com forums
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