Hilton's p66
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| Hilton's p66 | |||||||||
| View static image | |||||||||
| Pattern type | Oscillator | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of cells | 136 | ||||||||
| Bounding box | 51 × 51 | ||||||||
| Period | 66 (mod: 66) | ||||||||
| Heat | 141.8 | ||||||||
| Volatility | 0.99 | 0.99 | ||||||||
| Kinetic symmetry | *c | ||||||||
| Discovered by | Caleb R. Hilton | ||||||||
| Year of discovery | 2025 | ||||||||
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Hilton's p66 is a period-66 oscillator found by Caleb R. Hilton on November 5, 2025 via D8_1-symmetric apgsearch.[1] It is the first period-66 oscillator to be found via soup, and the first to be found seminaturally. In one phase, it consists of a two blocks and region #191 (zero-indexed) in census.rle, repeated eight times for eightfold symmetry.
The oscillator emits a pair of duoplet sparks with the outer dot edges four cells apart.
Hilton's p66 can be synthesised in 72 gliders.[2]
References
- ↑ Chris857 (November 9, 2025). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Chris857 (November 10, 2025). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
External links
Categories:
- Patterns
- Oscillators with between 130 and 139 cells
- Periodic objects with minimum population between 130 and 139
- Patterns with between 130 and 139 cells
- Patterns found by Caleb R. Hilton
- Patterns found in 2025
- Patterns that can be constructed with between 70 and 79 gliders
- Oscillators
- Oscillators with period 66
- Oscillators with mod 66
- Oscillators with heat between 140 and 149
- Oscillators with volatility 0.99
- Oscillators with strict volatility 0.99
- Oscillators with *c symmetry
- Sparkers
- Sparkers with period 66
- Non-reflecting duoplet sparkers
- Strong sparkers