B-heptomino
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| B-heptomino | |||||||
| View static image | |||||||
| Pattern type | Methuselah | ||||||
|---|---|---|---|---|---|---|---|
| Number of cells | 7 | ||||||
| Bounding box | 4 × 3 | ||||||
| Lifespan | 148 generations | ||||||
| L/I | 21.1 | ||||||
| Discovered by | John Conway | ||||||
| Year of discovery | 1970 | ||||||
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The B-heptomino is a very common methuselah that evolves into three blocks, two gliders and a ship after 148 generations. Compare with Herschel, which appears at generation 20 of B-heptomino's evolution. It often arises with the cell at top left shifted one space to the left, which does not affect the subsequent evolution. B-heptominoes acquired particular importance in 1996 due to David Buckingham's work on B tracks.
It is considered a failed spaceship, but can be used to make a puffer 2.
Image gallery
Generation 20 of the B-heptomino
Generation 148 of the B-heptomino
A 6-cell parent of the B-heptomino
See also
External links
- B-heptomino at the Life Lexicon