Elevener
| Elevener | |||||||||||
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| Pattern type | Strict still life | ||||||||||
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| Number of cells | 11 | ||||||||||
| Bounding box | 6×6 | ||||||||||
| Frequency class | 19.1 | ||||||||||
| Discovered by | Unknown | ||||||||||
| Year of discovery | Unknown | ||||||||||
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Elevener (or gull[1] or intentionless[2]) is an 11-cell still life. It consists of two siamesed eater 1s that share three cells of their tails while retaining both their glider-eating and boat-bit-catching capabilities.
Commonness
Elevener is the forty-seventh most common still life in Achim Flammenkamp's census (the second-most common of its size, after the boat tie ship), being less common than cis-mirrored bookend but more common than block on cap.[3] It is also the fifty-sixth most common object on Adam P. Goucher's Catagolue.[4]
Glider synthesis
An elevener can be formed by applying a banana spark to the tail of an eater 1; as both the eater 1 and the component cost two gliders, a total of four gliders are needed to synthesize an elevener. There is also a 3-glider collision that produces a constellation of an elevener, a block and a beehive, leading to another two-stage 4-glider synthesis for the still life.
In other rules
In HighLife, the elevener is almost 60 times more common than it is in Life. In B34e/S23, it is even more common, as fleet predecessors evolve into two eleveners instead of two ship-ties.
See also
References
- ↑ "Gull". The Life Lexicon. Stephen Silver. Retrieved on April 24, 2009.
- ↑ "Intentionless". The Life Lexicon. Stephen Silver. Retrieved on June 13, 2009.
- ↑ 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
- Elevener at the Life Lexicon
- The 46 eleven-bit still-lifes at Mark D. Niemiec's Life Page