Sesquihat

	Sesquihat
	<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 7, y = 5, rule = B3/S23 4bo$2obobo$bobobo$bobob2o$2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C Still life <nowiki>[[ THUMBSIZE 2 ]]</nowiki> <html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html> <html></noscript></canvas></div></html>
	<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 7, y = 5, rule = B3/S23 4bo$2obobo$bobobo$bobob2o$2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C Still life <nowiki>[[ THUMBSIZE 2 ]]</nowiki> <html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html> <html></noscript></canvas></div></html>
	View static image
Pattern type	Strict still life
Number of cells	13
Bounding box	7×5
Frequency class	27.5
Discovered by	Unknown
Year of discovery	Unknown
Rules
Outer-totalistic rules	B/S23 – B378/S012345678
Important rules	Conway Life
# of rules	210 = 1024
Isotropic rules	B/S2-n3r – B2ikn34-ai5-y6-i78/S012345678
Glider synthesis
Fewest gliders	5
Catagolue-generated RLE	sesquihat_synth.rle
Uploaded synthesis RLE	sesquihat_synth.rle
Pattern files
Plaintext	sesquihat.cells
RLE	sesquihat.rle
Identifiers
apgcode	xs13_2ege1e8
Niemiec ID	13.191
Pentadecathlon ID	13.238

Sesquihat is a 13-cell still life that is roughly halfway between a hat and twin hat. It is part of an infinite family of stringed beehive halves sandwiched between tails. Odd members have 180 degree rotational symmetry whilst even members have reflective symmetry, both with respect to their midpoints.

External links

Sesquihat at the Life Lexicon

Sesquihat at Adam P. Goucher's Catagolue

The 240 thirteen-bit still-lifes at Mark D. Niemiec's Life Page

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