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x = 14, y = 18, rule = B3/S23 2o12b$bo12b$bobo10b$2b2o10b$8bo5b$7b2o5b$8bo5b5$5bo8b$5b2o7b$5bo8b$10b 2o2b$10bobob$12bob$12b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 4 LOOP 36 THUMBSIZE 2 ZOOM 12 ]]
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 period-22 oscillator, see Jason's p22.

22P36 is an unnamed period-36 oscillator found by Noam Elkies on January 29, 1995.[1] It consists of a double hassling action, in which two colliding traffic lights is first converted by eater 1s into two pair of blinkers and a two blocks. These react to create a pair of blinkers and L-sparks, which then produce then a pair of phi sparks, which are then hassled by the same eaters to produce T-tetrominoes, which re-evolve to traffic lights. In terms of its 22 cells it is the smallest period 36 oscillator.


  1. Dean Hickerson's oscillator stamp collection. Retrieved on June 16, 2009.

External links