p55 pre-pulsar hassler
| p55 pre-pulsar hassler | |||||||||
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| Pattern type | Oscillator | ||||||||
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| Number of cells | 136 | ||||||||
| Bounding box | 43 × 25 | ||||||||
| Period | 55 (mod: 55) | ||||||||
| Heat | 25.82 | ||||||||
| Volatility | 0.70 | 0.70 | ||||||||
| Kinetic symmetry | -c | ||||||||
| Discovered by | David Buckingham | ||||||||
| Year of discovery | 1986 | ||||||||
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p55 pre-pulsar hassler is a period-55 oscillator discovered by David Buckingham on January 26, 1986[1], being the first period-55 oscillator to be found. It works by hassling a pre-pulsar with various still-lifes. The original pattern is hassled by two eater 1s, four eater 3s, and two 14-cell still lifes, each composed of an eater 1 and a bun. A reduced set of still-lifes were discovered by Matthias Merzenich in June, 2011. The new version is hassled by four eater 1s, two eater 3s, and two BTSs. On December 8, 2021, iNoMed found a slight reduction to this version.[2]
On December 9, 2021, iNoMed posted a 124-glider synthesis of the 136-cell hassler.[3] A reduction to 116 gliders was found by Carson Cheng in July 2023,[4] and a further reduction to 110 gliders was found by Luka Okanishi.[5][6]
A smaller version in both population and bounding box (shown below) was found by iNoMed on June 17, 2022. However, it uses p5 supports instead of exclusively stable supports, namely 5blink.
| 110P55, which has a bounding box of 37 × 23. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
Gallery
Generation 4 of the originally found pattern reveals that the object being hassled is a pre-pulsar
See also
References
- ↑ Dean Hickerson's oscillator stamp collection.
- ↑ iNoMed (December 8, 2021). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ iNoMed (December 9, 2021). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ Carson Cheng (July 14, 2023). Re: Catagolue Oddities (discussion thread) at the ConwayLife.com forums
- ↑ Luka Okanishi (July 30, 2023). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ shinjuku (#4774165230) (July 31, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.
External links
- 174P55.1 at Heinrich Koenig's Game of Life Object Catalogs
- p55 pre-pulsar hassler at Adam P. Goucher's Catagolue
- 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 David Buckingham
- Patterns found in 1986
- Patterns that can be constructed with between 100 and 199 gliders
- Oscillators
- Oscillators with period 55
- Oscillators with mod 55
- Oscillators with heat 25
- Oscillators with volatility 0.70
- Oscillators with strict volatility 0.70
- Oscillators with -c symmetry