116P101
| 116P101 | |||||||||
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| Pattern type | Oscillator | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of cells | 116 | ||||||||
| Bounding box | 46 × 39 | ||||||||
| Period | 101 (mod: 101) | ||||||||
| Heat | 53.6 | ||||||||
| Volatility | 0.90 | 0.90 | ||||||||
| Kinetic symmetry | Unspecified | ||||||||
| Discovered by | iNoMed Mitchell Riley | ||||||||
| Year of discovery | 2023 | ||||||||
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116P101 is a period-101 oscillator completed on March 17, 2023 by iNoMed based on a partial by Mitchell Riley.[1] It is the first known period-101 oscillator that is not based on adjustable signal loops. With minimum population 116 cells, it is smaller than the previously smallest known oscillator of this period, which has 160 cells and uses a NW-2T16-based 180-degree reflector.[2]
The active reaction consists in some phases of two copies of an evolutionary sequence #242 (zero-indexed) in census.rle, which consists of a block plus a bullet heptomino. Another phase is a procrastinator plus a transparent loaf in another area.
A glider synthesis for a variant of the oscillator was found on the day of its discovery.[citation needed][3]
The oscillator costs 44 gliders. The breakdown:
- Eater 2 (using a regular eater 2 rather than the shorter variant): 6 [total: 6]
- Fishhook next to eater 2: 2 [total: 8]
- Block as part of the active region: 2 [total: 10]
- Block as catalyst: 2 [total: 12]
- Fishhook at corner: 4 [total: 16]
- Fishhook at central edge: 4 [total: 20]
- Bullet heptomino to activate the active region: 2 [total: 22]
All of these are done twice because of rotational symmetry, so the total is 22 × 2 = 44 gliders.
References
- ↑ iNoMed (March 17, 2023). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Entity Valkyrie 2 (October 22, 2022). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ shinjuku (#3954924662) (March 17, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.
External links
- Patterns
- Oscillators with between 110 and 119 cells
- Periodic objects with minimum population between 110 and 119
- Patterns with between 110 and 119 cells
- Patterns found by iNoMed
- Patterns found by Mitchell Riley
- Patterns found in 2023
- Patterns that can be constructed with 44 gliders
- Outer-totalistically endemic patterns
- Oscillators
- Oscillators with period 101
- Prime-period oscillators
- Oscillators with mod 101
- Oscillators with heat 53
- Oscillators with volatility 0.90
- Oscillators with strict volatility 0.90
- Unnamed periodic objects