Tapeworm: Difference between revisions
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|rle = x = | |rle = x = 28, y = 44, rule = B3/S23 | ||
19bobo$20b2o$20bo6$13bo$14bo$12b3o11bo$25bo$25b3o2$ob2o$2obo$3bob2o$3b | |||
|viewerconfig = #C [[ HEIGHT 470 THEME Book ZOOM | o2bo$4b2o23$7b2o$6bobo$8bo! | ||
|viewerconfig = #C [[ HEIGHT 470 THEME Book ZOOM 10 X 4 AUTOSTART GPS 12 T 0 PAUSE 1 T 16 PAUSE 3 T 101 PAUSE 1 T 102 PAUSE 2 LOOP 103 ]] | |||
|position = center | |position = center | ||
|caption = A 4G synthesis<ref name="post48924" /> | |caption = A 4G synthesis<ref name="post48924" /> | ||
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|rle = x = | |rle = x = 43, y = 25, rule = B3/S23 | ||
bo$2bo$3o20bobo$23b2o$24bo3$19bo$18bo$18b3o6$23b3o$ | bo$2bo$3o20bobo$23b2o$24bo3$19bo$18bo$18b3o6$23b3o$23bo12bob2o$24bo11b | ||
2obo$39bob2o$39bo2bo$40b2o2$20bo$19b2o$19bobo! | |||
|viewerconfig = #C [[ HEIGHT 400 THEME Book ZOOM | |viewerconfig = #C [[ HEIGHT 400 THEME Book ZOOM 10 AUTOSTART GPS 12 T 0 PAUSE 1 T 16 PAUSE 3 T 42 PAUSE 1 T 43 PAUSE 2 LOOP 44 ]] | ||
|position = center | |position = center | ||
|caption = A 5G synthesis<ref name="niemiec" /><ref>{{LinkForumThread|format=ref|p=37575|title=Re: 4 glider syntheses}}</ref> | |caption = A 5G synthesis<ref name="niemiec" /><ref>{{LinkForumThread|format=ref|p=37575|title=Re: 4 glider syntheses}}</ref> | ||
Latest revision as of 17:04, 29 September 2024
| Tapeworm | |||||||||
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 13 | ||||||||
| Bounding box | 7 × 5 | ||||||||
| Frequency class | 22.3 | ||||||||
| Static symmetry | n (C1) | ||||||||
| Discovered by | Unknown | ||||||||
| Year of discovery | Unknown | ||||||||
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Tapeworm (or snake with curl) is a 13-cell still life. Despite being particularly common, this still life did not have a name until 2019, when the two aforementioned names were mentioned in its Catagolue comment section.[1]
Construction
Tapeworm is known to be constructible with 4 gliders.[1] Several known syntheses can be found in Mark Niemiec's database.[2] A 4-glider synthesis was found in August 2017.[3]
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Occurrence
- See also: List of common still lifes
It is the 102nd most common still life on Adam P. Goucher's Catagolue, being less common than cis-boat with nine but more common than loaf back tie loaf. It is the 6th most common still life with 14 cells, being less common than cis-boat on cap but more common than boat with hooked nine.
The octo3obj database contains four collisions with tapeworm in the ash.[5]
See also
References
- ↑ 1.0 1.1 xs13_321fgkc at Adam P. Goucher's Catagolue
- ↑ 2.0 2.1 The 240 thirteen-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 13/13-198.rle)
- ↑ 3.0 3.1 Simon Ekström (August 16, 2017). Re: 4 glider syntheses (discussion thread) at the ConwayLife.com forums
- ↑ Re: 4 glider syntheses (discussion thread) at the ConwayLife.com forums
- ↑ One collision (headerless RLE 2o$2o2b2o$4b2o6$2bo6b2o$2bo6b2o$2bo$4b3o$4bo$5bo!) has final population 278 with 6 escaping gliders. Three other collisions converge to sequence 10b3o$9bo3bo$3o5bo5bo$8bo5bo$8bo5bo$9bo3bo$10b3o3$8bo$8bo$8bo! with 11 escaping gliders and final population 589.
External links
- Tapeworm at Adam P. Goucher's Catagolue
- 13.160 at Heinrich Koenig's Game of Life Object Catalogs
- The 240 thirteen-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 13/13-198.rle)
- Tapeworm at Wikipedia (name origin)