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 | ||||||||||
Strict volatility | 0.87 | ||||||||||
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]

A variant of Gabriel's p138 with blocks.
View animated image.
View animated image.
The first known semi-natural appearance of this oscillator was in November 2014 in a soup found by Dongook Lee using apgsearch.[3]
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
- Patterns with 36 cells
- Patterns found by Gabriel Nivasch
- Patterns found in 2002
- Patterns that can be constructed with 12 gliders
- Oscillators
- Periodic objects with minimum population 36
- 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