Trans-bookend and bun
| Trans-bookend and bun | |||||||||
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| Pattern type | Strict still life | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of cells | 14 | ||||||||
| Bounding box | 7 × 5 | ||||||||
| Frequency class | 19.9 | ||||||||
| Static symmetry | n | ||||||||
| Discovered by | Unknown | ||||||||
| Year of discovery | Unknown | ||||||||
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Trans-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.
This specific isomer is named trans due to the two inducting faces not being skewed from each other, and the "denser" parts of each island are roughly on opposite sides.
Commonness
Trans-bookend and bun is the fifty-fifth most common still life in Achim Flammenkamp's census, being less common than broken snake but more common than block on cover.[1]
It is the 56th most common still life on Adam P. Goucher's Catagolue, being less common than broken snake but more common than eater head siamese eater tail. It is the 10th most common still life with 14 cells, being less common than trans-mirrored bun but more common than cis-bookend and bun.[2]
Glider synthesis
On April 17, 2007, Dean Hickerson found a 4-glider synthesis of this still life.[3]
See also
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.
- ↑ Dean Hickerson's 2, 3, and 4-glider syntheses pattern collection
External links
- The 619 fourteen-bit still-lifes at Mark D. Niemiec's Life Page