Jason's p22
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| Jason's p22 | |||||||||||
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| Pattern type | Oscillator | ||||||||||
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| Number of cells | 36 | ||||||||||
| Bounding box | 27×14 | ||||||||||
| Period | 22 | ||||||||||
| Mod | 22 | ||||||||||
| Heat | 35.6 | ||||||||||
| Volatility | 0.93 | ||||||||||
| Strict volatility | 0.93 | ||||||||||
| Discovered by | Jason Summers | ||||||||||
| Year of discovery | 2000 | ||||||||||
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- For the period-36 oscillator, see 22P36.
Jason's p22 (or 36P22) is an unnamed period-22 oscillator discovered by Jason Summers on August 27, 2000.[1] It is composed of an unnamed reaction stabilized by two copies of eater 1. In terms of its 36 cells, it is the smallest known period 22 oscillator, followed by beacon on 38P11.1 and champagne glass with 40 and 45 cells, respectively.[2] Later on the day of the oscillator's discovery, David Eppstein found a way to combine two of them to produce the first true period 22 gun.[3] In February 2001 Jason Summers found a 12-glider synthesis of this oscillator,[4] which was improved to 11 gliders by 2718281828 in December 2017[5] and later 10 by Mark Niemiec in September 2019.[6]
See also
- Caterer on Jason's p22
- Mold on Jason's p22
- Pseudo-barberpole on Jason's p22
- Figure eight on Jason's p22
References
- ↑ Jason Summers' all-osc pattern collection.
- ↑ "Class 2 Objects Catalog". Retrieved on April 9, 2009.
- ↑ "true". The Life Lexicon. Stephen Silver. Retrieved on July 7, 2009.
- ↑ Jason Summers' jslife pattern collection.
- ↑ 2718281828 (December 6, 2017). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ Mark Niemiec (September 30, 2019). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
External links
- 36P22.1 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Oscillators with 36 cells
- Patterns with 36 cells
- Patterns found by Jason Summers
- Patterns found in 2000
- Patterns that can be constructed with 10 gliders
- Oscillators
- Periodic objects with minimum population 36
- Oscillators with period 22
- Oscillators with mod 22
- Oscillators with heat 35
- Oscillators with volatility 0.93
- Oscillators with strict volatility 0.93
- Patterns with 180-degree rotation symmetry
- Sparkers
- Sparkers with period 22
- Non-reflecting duoplet sparkers
- Strong sparkers
