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x = 12, y = 12, rule = B3/S23 2b2ob2o$3bobobo$3bo4bo$2obo5bo$2obo6bo$3bobo5bo$3bob2o3b2o$4bo$5b7o$ 11bo$7b2o$7b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 5 LOOP 11 ]]
Pattern type Oscillator
Oscillator type Billiard table
Number of cells 38
Bounding box 12×12
Period 11
Mod 11
Heat 4.4
Volatility 0.31
Strict volatility 0.31
Discovered by David Buckingham
Year of discovery 1977

38P11.1 is an unnamed period-11 oscillator. Discovered by David Buckingham on June 20, 1977,[1] it was the first oscillator of this period to be found and was the smallest known until it was surpassed by rattlesnake in 2016. It uses two blocks as induction coils.

A four-fold version of this oscillator appeared semi-naturally in August 2016.[2]


4fold38p11dot1variant1.png 4fold38p11dot1variant2.png 4fold38p11dot1variant3.png
Four-fold 38P11.1
variant 1
Four-fold 38P11.1
variant 2
Four-fold 38P11.1
variant 3

See also


  1. Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
  2. Apple Bottom (August 15, 2016). Re: Soup search results (discussion thread) at the ConwayLife.com forums

External links

  • 38P11.1 at Heinrich Koenig's Game of Life Object Catalogs