Four eaters hassling four bookends

	Four eaters hassling four bookends
	<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 29, y = 29, rule = B3/S23 10bo18b$10b3o16b$13bo15b$12b2o15b$29b$29b$29b$29b$14b2o13b$14bob2o11b$ 2o12b4o11b$bo13b2ob2o9b$bobo13b3o9b$2b2o13b2obo8b$8b3o7b3o8b$8bob2o13b 2o2b$9b3o13bobob$9b2ob2o13bob$11b4o12b2o$11b2obo14b$13b2o14b$29b$29b$29b$ 29b$15b2o12b$15bo13b$16b3o10b$18bo10b! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] <nowiki>#C [[ THUMBSIZE 3 GPS 9 ZOOM 16 HEIGHT 600 WIDTH 600 LOOP 18 ]]</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 = 29, y = 29, rule = B3/S23 10bo18b$10b3o16b$13bo15b$12b2o15b$29b$29b$29b$29b$14b2o13b$14bob2o11b$ 2o12b4o11b$bo13b2ob2o9b$bobo13b3o9b$2b2o13b2obo8b$8b3o7b3o8b$8bob2o13b 2o2b$9b3o13bobob$9b2ob2o13bob$11b4o12b2o$11b2obo14b$13b2o14b$29b$29b$29b$ 29b$15b2o12b$15bo13b$16b3o10b$18bo10b! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] <nowiki>#C [[ THUMBSIZE 3 GPS 9 ZOOM 16 HEIGHT 600 WIDTH 600 LOOP 18 ]]</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	56
Bounding box	29×29
Period	18
Mod	18
Heat	46.7
Volatility	0.90
Strict volatility	0.90
Discovered by	Jason Summers; Gabriel Nivasch
Year of discovery	2002
Rules
Outer-totalistic rules	B3/S23 – B38/S238
Important rules	Conway Life
# of rules	22 = 4
Isotropic rules	B3-ky/S23-ky – B34cek5e6cei7e8/S234eyz5ery6ei7c8
Glider synthesis
Fewest gliders	42 (32†)
Catagolue-generated RLE	foureatershasslingfourbookends_synth.rle
Uploaded synthesis RLE	foureatershasslingfourbookends_synth.rle
	†Can be constructed with 32 gliders using the reverse caber tosser universal constructor.
Pattern files
Plaintext	foureatershasslingfourbookends.cells
RLE	foureatershasslingfourbookends.rle
Identifiers
apgcode	xp18_y632aczyao8ggz178cy0gggx133dumozy4167rscoy631e8zy911zyb354c
Niemiec ID	56et4be4
Pentadecathlon ID	56P18.1

Four eaters hassling four bookends is a period-18 oscillator that was discovered by Jason Summers and Gabriel Nivasch on October 16, 2002. A 45-glider synthesis of this oscillator was found by Mark Niemiec the month of its discovery.[1]

This oscillator first appeared semi-naturally on March 13, 2017, in a symmetric soup submitted to Catagolue by benetnasch85.[2]

References

Jason Summers' jslife pattern collection. Retrieved on January 5, 2020.
Apple Bottom (March 28, 2017). Re: Soup search results (discussion thread) at the ConwayLife.com forums

External links

Four eaters hassling four bookends at Adam P. Goucher's Catagolue

56P18.1 at Heinrich Koenig's Game of Life Object Catalogs

3 Period-18 oscillators at Mark D. Niemiec's Life Page

This article is issued from Conwaylife. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.

[1] Jason Summers' jslife pattern collection. Retrieved on January 5, 2020.

[post42132-2] Apple Bottom (March 28, 2017). Re: Soup search results (discussion thread) at the ConwayLife.com forums