E-heptomino
| E-heptomino | |||||||||
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| Pattern type | Methuselah | ||||||||
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| Number of cells | 7 | ||||||||
| Bounding box | 4 × 3 | ||||||||
| MCPS | 7 | ||||||||
| Lifespan | 343 generations | ||||||||
| Final population | 52 | ||||||||
| L/I | 49 | ||||||||
| F/I | 7.4 | ||||||||
| F/L | 0.152 | ||||||||
| L/MCPS | 49 | ||||||||
| Static symmetry | C1 | ||||||||
| Discovered by | John Conway | ||||||||
| Year of discovery | 1970 | ||||||||
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E-heptomino (or E) is a semi-common heptomino named by John Conway.[1] It stabilizes at generation 343, leaving behind four beehives, five blocks, one blinker and one escaping glider.[2]
The following is a pattern that eventually becomes the immediate child of the E-heptomino sequence in 19 generations, putting them 18 generations apart. It has two six-cell great-great-grandparents (3bo$2b2o2$bo$2o! and 2bo$2b2o2$bo$2o!).
| (click above to open LifeViewer) RLE: here Plaintext: here |
The following is a pattern that converges to the E-heptomino sequence, but in a completely different way. Generation 22 of this pattern is generation 12 of the E-heptomino; both are a lumps of muck and a block, but the lumps of muck form in completely different ways.
| (click above to open LifeViewer) RLE: here Plaintext: here |
Here is E-heptomino at generation 343, stabilized except for an escaping glider:
Hasslers
While census.rle places the most common E-heptomino predecessor at rank #52, the E-heptomino is more common than that in octo3obj, placing it somewhere between 15th and 20th. One E-heptomino hassler is known. It was found by Period1GliderGun on September 29, 2024 based on a partial by Nora Brown on October 29, 2022. It has period 412, and the large p4 sparkers only delete junk.
| As described above (click above to open LifeViewer) Catagolue: here |
See also
References
- ↑ Robert Wainwright (March 1971). Lifeline, vol 1, page 1.
- ↑ Robert Wainwright (June 1971). Lifeline, vol 2, page 1.
External links
- E-heptomino at the Life Lexicon