22P36
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| 22P36 | |||||||||||
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| Pattern type | Oscillator | ||||||||||
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| Number of cells | 22 | ||||||||||
| Bounding box | 14×18 | ||||||||||
| Period | 36 | ||||||||||
| Mod | 36 | ||||||||||
| Heat | 19.2 | ||||||||||
| Volatility | 0.89 | ||||||||||
| Strict volatility | 0.89 | ||||||||||
| Discovered by | Noam Elkies | ||||||||||
| Year of discovery | 1995 | ||||||||||
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- For the 36-cell period-22 oscillator, see Jason's p22.
22P36 is an unnamed period-36 oscillator found by Noam Elkies on January 29, 1995.[1] It consists of two t-tetrominoes being hassled by two eater 1s. The eaters convert two traffic lights into two phi sparks, and then convert them back to t-tetrominoes. In terms of population it is currently the smallest period 36 oscillator.
It first appeared semi-naturally in July or August 2017, in a symmetric soup submitted to Catagolue by Moth Wingthane.[2]
References
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on June 16, 2009.
- ↑ Apple Bottom (August 1, 2017). Re: Soup search results (discussion thread) at the ConwayLife.com forums
External links
Categories:
- Patterns
- Oscillators with 22 cells
- Patterns with 22 cells
- Patterns found by Noam Elkies
- Patterns found in 1995
- Patterns that can be constructed with 9 gliders
- Oscillators
- Periodic objects with minimum population 22
- Oscillators with period 36
- Oscillators with mod 36
- Oscillators with heat 19
- Oscillators with volatility 0.89
- Oscillators with strict volatility 0.89
- Patterns with 180-degree rotation symmetry
- Unnamed periodic objects
- Semi-natural periodic objects
