Elkies' p5
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| Elkies' p5 | |||||||||
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| Pattern type | Oscillator | ||||||||
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| Number of cells | 20 | ||||||||
| Bounding box | 9 × 8 | ||||||||
| Frequency class | 43.0 | ||||||||
| Period | 5 | ||||||||
| Mod | 5 | ||||||||
| Heat | 6.8 | ||||||||
| Volatility | 0.55 | ||||||||
| Strict volatility | 0.55 | ||||||||
| Discovered by | Noam Elkies | ||||||||
| Year of discovery | 1997 | ||||||||
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Elkies' p5 is a period 5 oscillator that was found by Noam Elkies in 1997.
Elkies' p5 first occurred naturally in a soup found by Adam P. Goucher's apgsearch program in April 2015. Other efforts from apgsearch allowed a 15-glider synthesis of an 18-cell still life which can be converted to Elkies' p5. This 20-glider synthesis was completed by Brett Berger and Martin Grant. This was further improved to 8 gliders by Brett Berger and Martin Grant following a second natural occurrence in January 2016.
Commonness
On Catagolue, it is the third most common period 5 oscillator, after octagon II and fumarole.[1]
See also
References
- ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on October 27, 2018.
External links
- Elkies' p5 at the Life Lexicon
- 20P5.11 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Patterns with Catagolue frequency class 43
- Natural periodic objects
- Oscillators with 20 cells
- Periodic objects with minimum population 20
- Patterns with 20 cells
- Patterns found by Noam Elkies
- Patterns found in 1997
- Patterns that can be constructed with 8 gliders
- Oscillators
- Oscillators with period 5
- Oscillators with mod 5
- Oscillators with heat 6
- Oscillators with volatility 0.55
- Oscillators with strict volatility 0.55
- Sparkers
- Sparkers with period 5
- Moderate sparkers
- Non-reflecting duoplet sparkers