144P24

144P24 is an unnamed period-24 oscillator that was discovered by Noam Elkies on November 20, 1994.[1] It was the second period 24 oscillator to be found, after 186P24.

144P24
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html> #O Noam Elkies, November 20, 1994 #C One of the first period 24 oscillators to be found. x = 25, y = 35, rule = B3/S23 4b2o10b2o7b$3bo2bo2b4o2bo2bo6b$3b3o2b6o2b3o6b$6b10o9b$5bo10bo8b$5b2o8b 2o8b2$11bo7bo5b$5bo6bo5b2o5b$5b2o3bo3bo10b$16b3o2bobob$bobo2b3obo3bo3b ob4ob$b4obo4b3o8b2ob$b2o22b3$11b3o11b5$5bo19b$4o3bo11bo5b$3bo3bo9bo3b 4o$7bo3b3o3bo3bo3b$4bo7bo4bo7b$5b2o13bo4b$18b2o5b2$5b2o8b2o8b$5bo2b6o 2bo8b$6b2o6b2o9b$3b3o10b3o6b$3bo2bobo4bobo2bo6b$4b2o4b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] <nowiki>#C [[ GPS 3 LOOP 24 THUMBSIZE 2 ZOOM 8 ]]</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 144
Bounding box 25×35
Period 24
Mod 24
Heat 125.0
Volatility 0.80
Strict volatility 0.12
Discovered by Noam Elkies
Year of discovery 1994

It works roughly by using two period 12 crowns to hassle a blinker, though the stable form of the crown wasn't found until two months later.

References
  1. Dean Hickerson's oscillator stamp collection. Retrieved on April 21, 2009.
  • 144P24.1 at Heinrich Koenig's Game of Life Object Catalogs
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