42P38
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| 42P38 | |||||||||
| View static image | |||||||||
| Pattern type | Oscillator | ||||||||
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| Number of cells | 42 | ||||||||
| Bounding box | 25 × 27 | ||||||||
| Period | 38 (mod: 38) | ||||||||
| Heat | 45.5 | ||||||||
| Volatility | 0.93 | 0.87 | ||||||||
| Kinetic symmetry | Unspecified | ||||||||
| Discovered by | Mitchell Riley | ||||||||
| Year of discovery | 2023 | ||||||||
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42P38 is a small period-38 oscillator found by Mitchell Riley on April 21, 2023. With only 38 cells, it is the smallest known period-38 oscillator by population; surpassing 44P38. It consists of an R-pentomino turning into an octomino II via fishhook, then turning back into an R-pentomino via a combination of a transparent blinker plus toad catalyst and hitting a second copy of itself.
It is a delayed domino sparker; no uses have been found yet.
External links
Categories:
- Patterns
- Oscillators with 42 cells
- Periodic objects with minimum population 42
- Patterns with 42 cells
- Patterns found by Mitchell Riley
- Patterns found in 2023
- Oscillators
- Oscillators with period 38
- Oscillators with mod 38
- Oscillators with heat 45
- Oscillators with volatility 0.93
- Oscillators with strict volatility 0.87
- R-pentomino hasslers