38P7.2
| 38P7.2 | |||||||||
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| Pattern type | Oscillator | ||||||||
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| Number of cells | 38 | ||||||||
| Bounding box | 15 × 11 | ||||||||
| Period | 7 | ||||||||
| Mod | 7 | ||||||||
| Heat | 23.4 | ||||||||
| Volatility | 0.82 | ||||||||
| Strict volatility | 0.82 | ||||||||
| Discovered by | Nicolay Beluchenko | ||||||||
| Year of discovery | 2009 | ||||||||
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38P7.2 is an unnamed period-7 oscillator discovered by Nicolay Beluchenko on February 17, 2009.[1] It provides four sparks in generation 4 that are useful in creating p7 bumper as well as non-trivial oscillators of higher periods such as snacker on 38P7.2. A variation of this oscillator can be created by displacing one half of the oscillator by two cells.
It first appeared semi-naturally in March 2016.[2] gmc_nxtman found an 18-glider synthesis of this oscillator on August 13, 2017.[3] Goldtiger997 improved this to 14 gliders on February 12, 2018.[4]
In March 2018, Josh Ball found a pattern that can be stabilized by copies of 38P7.2 without blocks.[5]
In May 2022, Charity Engine found meatball, in the C2_1 census on Catagolue. It has some of the same utility as 38P7.2, in a slightly smaller package.[6]
Gallery
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See also
References
- ↑ Jason Summers' all-osc pattern collection.
- ↑ Adam P. Goucher (March 19, 2016). Re: Soup search results (discussion thread) at the ConwayLife.com forums
- ↑ gmc_nxtman (August 13, 2017). Re: Soup Search Results (discussion thread) at the ConwayLife.com forums
- ↑ Goldtiger997 (February 12, 2018). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ Josh Ball (March 27, 2018). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Tanner Jacobi (May 28, 2022). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
External links
- New Oscillators at Game of Life News. Posted by Heinrich Koenig on March 16, 2009.
- 38P7.2 at Adam P. Goucher's Catagolue
- 38P7.2 at Heinrich Koenig's Game of Life Object Catalogs
- Patterns
- Oscillators with 38 cells
- Periodic objects with minimum population 38
- Patterns with 38 cells
- Patterns found by Nicolay Beluchenko
- Patterns found in 2009
- Patterns that can be constructed with 13 gliders
- Oscillators
- Oscillators with period 7
- Oscillators with mod 7
- Oscillators with heat 23
- Oscillators with volatility 0.82
- Oscillators with strict volatility 0.82
- Patterns with bilateral orthogonal symmetry
- Sparkers
- Sparkers with period 7
- Dot sparkers
- Strong sparkers
- Unnamed periodic objects
- Semi-natural periodic objects