p49 pi-heptomino hassler
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| p49 pi-heptomino hassler | |||||||||
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| Pattern type | Oscillator | ||||||||
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| Number of cells | 98 | ||||||||
| Bounding box | 52 × 24 | ||||||||
| Period | 49 (mod: 49) | ||||||||
| Heat | 45.1 | ||||||||
| Volatility | 0.87 | 0.87 | ||||||||
| Kinetic symmetry | Unspecified | ||||||||
| Discovered by | Nico Brown | ||||||||
| Year of discovery | 2023 | ||||||||
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p49 pi-heptomino hassler is a period-49 oscillator found by Nico Brown on April 18, 2023.[1] With a minimum population of 98 cells, it was the smallest known period-49 oscillator until the discovery of 44P49.
Two copies minus the ship+fishhook catalyst at one end (for each one) can create a p49 glider gun.
There are 3 different forms of the oscillator because the block catalysts that the pi-heptominoes hit to split in two symmetrically can be moved by one cell.
A 52-glider synthesis for a variant with fishhooks instead of snakes (Catagolue: here) was found in May 2023.[2] Chris857 lowered the cost to 50 gliders on December 24, 2023,[3][4] and then to 48 gliders the next day.[5][6]
See also
References
- ↑ turingcomplete30 (April 18, 2023). Message in #cgol on the Conwaylife Lounge Discord server
- ↑ Chris857 (May 14, 2023). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ Chris857 (December 24, 2023). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ shinjuku (#5818150924) (December 25, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.
- ↑ Chris857 (December 25, 2023). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ shinjuku (#5819840720) (December 25, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.
External links
Categories:
- Patterns
- Oscillators with 98 cells
- Periodic objects with minimum population 98
- Patterns with 98 cells
- Patterns found by Nico Brown
- Patterns found in 2023
- Patterns that can be constructed with 48 gliders
- Oscillators
- Oscillators with period 49
- Oscillators with mod 49
- Oscillators with heat 45
- Oscillators with volatility 0.87
- Oscillators with strict volatility 0.87
- Patterns with 180-degree rotation symmetry
- Pi-heptomino hasslers