70P26
70P26 | |||||||||
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Pattern type | Oscillator | ||||||||
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Number of cells | 70 | ||||||||
Bounding box | 39 × 10 | ||||||||
Period | 26 (mod: 26) | ||||||||
Heat | 20.8 | ||||||||
Volatility | 0.82 | 0.82 | ||||||||
Kinetic symmetry | -c | ||||||||
Discovered by | Mitchell Riley | ||||||||
Year of discovery | 2022 | ||||||||
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70P26 is a period-26 oscillator found by Mitchell Riley on September 23, 2022.[1] At its minimum population of 70 cells, it was the smallest known period-26 oscillator until the discovery of the 60-cell p26 honey farm hassler in April 2023. It consists of two blocks and two elevener+ship+eater 1 catalyst hassling two two-glider octominoes.
Chris857 and Carson Cheng found a 37-glider synthesis of this oscillator on the day of its discovery.[2] The synthesis was later reduced to 35 gliders with a cheaper ship+fishhook construction.[3][4] On September 7, 2023, Chris857 lowered the cost to 27 gliders with a cheaper synthesis of the octominoes.[5][6]
Better clearance for sparks and a smaller bounding box, but a higher population. (click above to open LifeViewer) Catagolue: here |
LCM oscillators
The LCM oscillators below are listed due to being the smallest known ones by population while satisfying the condition that at least one cell oscillates at the full period.
Tumbler on 70P26, the smallest known p182 oscillator by population[7] (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
References
- ↑ Carson Cheng (September 23, 2022). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Carson Cheng (September 23, 2022). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ Chris857 (July 9, 2023). Re: Catagolue Oddities (discussion thread) at the ConwayLife.com forums
- ↑ shinjuku (#4619103056) (July 9, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.
- ↑ Chris857 (September 5, 2023). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ shinjuku (#5033327992) (September 7, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.
- ↑ Entity Valkyrie (October 22, 2024). Message in #cgol on the Conwaylife Lounge Discord server
- Patterns
- Oscillators with 70 cells
- Periodic objects with minimum population 70
- Patterns with 70 cells
- Patterns found by Mitchell Riley
- Patterns found in 2022
- Patterns that can be constructed with 27 gliders
- Oscillators
- Oscillators with period 26
- Oscillators with mod 26
- Oscillators with heat 20
- Oscillators with volatility 0.82
- Oscillators with strict volatility 0.82
- Oscillators with -c symmetry