Caterer on 28P7.3

	Caterer on 28P7.3
	<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 17, y = 13, rule = B3/S23 obo$2obo$3bo2b2o$2obobobo2b2o$o2bo2bo5bo$2bo6bo$4bo4bo3bo$2b3o4bo3b4o$ 11bo$6b2o$6bobo$8bo$8b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] <nowiki>#C [[ LOOP 96 THUMBSIZE 3 GPS 4 ZOOM 16 HEIGHT 640 WIDTH 640 ]]</nowiki> <html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html> File:Catereron28p7.3.png <html></noscript></canvas></div></html>
	<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 17, y = 13, rule = B3/S23 obo$2obo$3bo2b2o$2obobobo2b2o$o2bo2bo5bo$2bo6bo$4bo4bo3bo$2b3o4bo3b4o$ 11bo$6b2o$6bobo$8bo$8b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] <nowiki>#C [[ LOOP 96 THUMBSIZE 3 GPS 4 ZOOM 16 HEIGHT 640 WIDTH 640 ]]</nowiki> <html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html> File:Catereron28p7.3.png <html></noscript></canvas></div></html>
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Pattern type	Oscillator
Number of cells	40
Bounding box	13×17
Period	21
Mod	21
Heat	22.7
Volatility	0.67
Strict volatility	0.01
Discovered by	Unknown
Year of discovery	Unknown
Rules
Outer-totalistic rules	B3/S23 – B378/S2378
Important rules	Conway Life
# of rules	24 = 16
Isotropic rules	B3/S2-n3-k – B34cey5k6cei78/S234ceitz5-inqr6ein78
Pattern files
Plaintext	catereron28p7.3.cells
RLE	catereron28p7.3.rle
Identifiers
apgcode	xp21_5b8b94gszw6520gw6a8ozx332f7zy2121

Caterer on 28P7.3 is a period-21 oscillator that is composed of a caterer and 28P7.3. Although it is composed of two oscillators of smaller periods (3 and 7 respectively), it is considered non-trivial because it contains a single cell that is alive in generation 5 and dead in the other 20 phases of the oscillator. In terms of its 40 cells, it is the smallest known non-trivial period 21 oscillator, although the trivial burloaferimeter and long hook eating tub has a minimum population of only 36 cells.

External links

Caterer on 28P7.3 at Adam P. Goucher's Catagolue

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