Odd keys
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Odd keys | |||||||||
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Pattern type | Oscillator | ||||||||
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Number of cells | 16 | ||||||||
Bounding box | 12 × 5 | ||||||||
Frequency class | 40.6 | ||||||||
Period | 3 (mod: 3) | ||||||||
Heat | 14.7 | ||||||||
Volatility | 0.73 | 0.73 | ||||||||
Kinetic symmetry | n | ||||||||
Discovered by | Dean Hickerson | ||||||||
Year of discovery | 1989 | ||||||||
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Odd keys is a period-3 oscillator found by Dean Hickerson in August 1989. It is one half of bent keys combined with one half of short keys, and it can be extended horizontally as in the original form of Jason's p33.
Synthesis
In January 2000 Mark Niemiec found a 21-glider synthesis of this oscillator.[1] On August 25, 2016, Goldtiger997 found a 10-glider synthesis of odd keys,[2] which was later reduced to 9 gliders by Dave Greene. On June 26, 2024, Carson Cheng found a 7-glider synthesis.[3][4]
See also
References
- ↑ Jason Summers' jslife pattern collection.
- ↑ Goldtiger997 (August 26, 2016). Re: Soup search results (discussion thread) at the ConwayLife.com forums
- ↑ Carson Cheng (June 25, 2024). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ shinjuku (#7194864986) (June 26, 2024). Job triggered by Adam P. Goucher at GitLab Catagolue project.
External links
- Odd keys at the Life Lexicon
- Odd keys at Adam P. Goucher's Catagolue
- The 7 sixteen-bit period 3 oscillator at Mark D. Niemiec's Life Page (download pattern file: 16/16kyky2.rle)
- 16P3.7 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Patterns with Catagolue frequency class 40
- Natural periodic objects
- Oscillators with 16 cells
- Periodic objects with minimum population 16
- Patterns with 16 cells
- Patterns found by Dean Hickerson
- Patterns found in 1989
- Patterns that can be constructed with 7 gliders
- Oscillators
- Oscillators with period 3
- Oscillators with mod 3
- Oscillators with heat 14
- Oscillators with volatility 0.73
- Oscillators with strict volatility 0.73
- Oscillators with n symmetry
- Sparkers
- Sparkers with period 3
- Dot sparkers
- Moderate sparkers