134P25

134P25 is an unnamed period-25 oscillator. It was the first period 25 oscillator to be found,[1] and was discovered by Noam Elkies on September 23, 1994. In its original form it used toasters instead of eater 1s.

134P25
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html> #O Noam Elkies, September 23, 1994 #C The first period 25 oscillator to be found. x = 35, y = 23, rule = B3/S23 21bo13b$19b3o13b$18bo8bo2b2o3b$9b2o7b2o6bobo2bo3b$10bo15bobobo4b$10bob o12b2obob2o3b$11b2o11bo3bo3bo2b$19bo4bo4bobobob$6b2o9b2ob2o2bo3b2o3bob $5bo2bo10bo4bo4bob2o2b$o2bo2bobo15bo3bo6b$5obob2o15b2obob5o$6bo3bo15bo bo2bo2bo$2b2obo4bo4bo10bo2bo5b$bo3b2o3bo2b2ob2o9b2o6b$bobobo4bo4bo19b$ 2bo3bo3bo11b2o11b$3b2obob2o12bobo10b$4bobobo15bo10b$3bo2bobo6b2o7b2o9b $3b2o2bo8bo18b$13b3o19b$13bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] <nowiki>#C [[ GPS 5 LOOP 25 THUMBSIZE 2 ZOOM 10 ]]</nowiki> <html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html> <html></noscript></canvas></div></html>
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Pattern type Oscillator
Number of cells 134
Bounding box 35×23
Period 25
Mod 25
Heat 51.2
Volatility 0.64
Strict volatility 0.40
Discovered by Noam Elkies
Year of discovery 1994

It works by using two middleweight volcanos to push two T-tetrominoes three cells in 14 generations and then back in 11 generations.

References
  1. Dean Hickerson's oscillator stamp collection. Retrieved on April 17, 2009.
  • 134P25.1 at Heinrich Koenig's Game of Life Object Catalogs
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