Cis-bookend and bun
| Cis-bookend and bun | |||||||||
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 14 | ||||||||
| Bounding box | 7 × 4 | ||||||||
| Frequency class | 20.5 | ||||||||
| Static symmetry | n | ||||||||
| Discovered by | Unknown | ||||||||
| Year of discovery | Unknown | ||||||||
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Cis-bookend and bun is a 14-cell strict still life consisting of a bookend and a bun stabilising each other. It is one of seven ways in which a bookend and a bun can be arranged to create a still life, and one of the six which have two separate islands (see bookend and bun family below).
This specific isomer is named cis due to the two inducting faces not being skewed from each other, and the "denser" parts of each island are roughly on the same side.
Commonness
- Main article: List of common still lifes
Cis-bookend and bun is the sixty-fifth most common still life in Achim Flammenkamp's census, being less common than boat with long tail but more common than beehive at loaf.[1]
It is the 68th most common still life on Adam P. Goucher's Catagolue, being less common than tub with long tail but more common than hook with tail. It is the 11th most common still life with 14 cells, being less common than trans-bookend and bun but more common than trans-rotated bun.[2]
Glider synthesis
All strict still lifes with a population of 22 or fewer cells, all oscillators with 16 or fewer cells, and all spaceships with 31 or fewer cells are known to be glider-constructible. A glider synthesis of this object can be found in the infobox to the right.
Bookend and bun family
References
- ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
- ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on May 5, 2023.
External links
- Cis-bookend and bun at Adam P. Goucher's Catagolue
- The 619 fourteen-bit still-lifes at Mark D. Niemiec's Life Page