Gabriel's p138
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| Gabriel's p138 | |||||||||
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| Pattern type | Oscillator | ||||||||
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| Number of cells | 36 | ||||||||
| Bounding box | 33 × 33 | ||||||||
| Period | 138 (mod: 69) | ||||||||
| Heat | 57.7 | ||||||||
| Volatility | 1.00 | 0.87 | ||||||||
| Kinetic symmetry | Unspecified | ||||||||
| Discovered by | Gabriel Nivasch | ||||||||
| Year of discovery | 2002 | ||||||||
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Gabriel's p138 is a period-138 oscillator discovered by Gabriel Nivasch on October 13, 2002. In terms of its 36 cells, it is, by far, the smallest known period 138 oscillator.[1] Within a month of its discovery, Jason Summers found a 12-glider synthesis for this oscillator.[2]
The first known semi-natural appearance of this oscillator was in November 2014 in a soup found by Dongook Lee using apgsearch.[3]
 A variant of Gabriel's p138 with blocks. View animated image. |
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See also
References
- ↑ Jason Summers' all-osc pattern collection.
- ↑ Jason Summers' jslife pattern collection.
- ↑ Dongook Lee (December 1, 2014). Re: Soup search results (discussion thread) at the ConwayLife.com forums
External links
- Gabriel's p138 at the Life Lexicon
- 36P136.1 at Heinrich Koenig's Game of Life Object Catalogs (note: site incorrectly lists period as 136 instead of 138)
Categories:
- Patterns
- Oscillators with 36 cells
- Periodic objects with minimum population 36
- Patterns with 36 cells
- Patterns found by Gabriel Nivasch
- Patterns found in 2002
- Patterns that can be constructed with 12 gliders
- Oscillators
- Oscillators with period 138
- Oscillators with mod 69
- Oscillators with heat 57
- Oscillators with volatility 1.00
- Oscillators with strict volatility 0.87
- Patterns with 90-degree rotation symmetry
- Flipping oscillators
- Semi-natural periodic objects