Cis-rotated bookend
| Cis-rotated bookend | |||||||||
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 14 | ||||||||
| Bounding box | 7 × 5 | ||||||||
| Frequency class | 19.1 | ||||||||
| Static symmetry | Unspecified | ||||||||
| Discovered by | Unknown | ||||||||
| Year of discovery | Unknown | ||||||||
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Cis-rotated bookend is a 14-cell strict still life consisting of two mutually stabilising bookends. It is one of six ways in which two bookends can be arranged to create a still life, and one of the five which has two separate islands.
Commonness
Cis-rotated bookend is the fiftieth most common still life in Achim Flammenkamp's census, being less common than trans-loaf with tail but more common than trans-block on long hook.[1] It is also the fifty-fifth most common object on Adam P. Goucher's Catagolue.[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.
See also
- Cis-mirrored bookend
- Trans-mirrored bookend
- Shift-mirrored bookend
- Trans-rotated bookend
- Bookend bridge bookend
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 June 24, 2016.
External links
- The 619 fourteen-bit still-lifes at Mark D. Niemiec's Life Page