Gabriel's p138

Gabriel's p138 is a period-138 oscillator discovered by Gabriel Nivasch on October 13, 2002. In terms of its 36 cells, it is, by far, the smallest known period 138 oscillator.[1] Within a month of its discovery, Jason Summers found a 12-glider synthesis for this oscillator.[2]

A variant of Gabriel's p138 with blocks.
View animated image.
Gabriel's p138
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 21, y = 21, rule = b3/s23 8b3o10b$7bo2bo10b$7bo2bo10b$7b2o12b4$17b3ob$17bo2bo$20bo$3o15b3o$o20b$ o2bo17b$b3o17b4$12b2o7b$10bo2bo7b$10bo2bo7b$10b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] <nowiki>#C [[ LOOP 138 GPS 23 THUMBSIZE 3 ZOOM 16 WIDTH 640 HEIGHT 640 ]]</nowiki> <html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html> <html></noscript></canvas></div></html>
View animated image
View static image
Pattern type Oscillator
Number of cells 36
Bounding box 33×33
Period 138
Mod 69
Heat 57.7
Volatility 1.00
Strict volatility 0.87
Discovered by Gabriel Nivasch
Year of discovery 2002

The first known semi-natural appearance of this oscillator was in November 2014 in a soup found by Dongook Lee using apgsearch.[3]

See also

References
  1. Jason Summers' all-osc pattern collection.
  2. Jason Summers' jslife pattern collection.
  3. Dongook Lee (December 1, 2014). Re: Soup search results (discussion thread) at the ConwayLife.com forums
  • 36P136.1 at Heinrich Koenig's Game of Life Object Catalogs (note: site incorrectly lists period as 136 instead of 138)
This article is issued from Conwaylife. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.