Karel's p177
Karel's p177 (or 104P177) is a period-177 oscillator discovered by Karel Suhajda in June 2007.[1] In terms of its minimum population of 104 cells, it is the smallest known period 177 oscillator. It can serve as a 90° or 180° degree reflector in many ways, and with the correct phasing, a glider can pass through it unharmed. On March 21, 2009 Jason Summers found a 24-glider synthesis of this oscillator.[2]
| Karel's p177 | |||||||||||
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| Pattern type | Oscillator | ||||||||||
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| Number of cells | 104 | ||||||||||
| Bounding box | 62×62 | ||||||||||
| Period | 177 | ||||||||||
| Mod | 177 | ||||||||||
| Heat | 215.3 | ||||||||||
| Volatility | 1.00 | ||||||||||
| Strict volatility | 1.00 | ||||||||||
| Discovered by | Karel Suhajda | ||||||||||
| Year of discovery | 2007 | ||||||||||
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The first known semi-natural appearance of this oscillator was in December 2014, in a symmetric soup found by Dongook Lee using apgsearch.[3]
Image gallery
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gollark: You can't even *see* them in potatoS.
gollark: What about system files?
gollark: Unless you `exorcise` it - that permanently deletes immediately.
gollark: Any deleted file ends up there until you delete it from that.
gollark: It has a recycle bin, though.
See also
References
- Jason Summers' all-osc pattern collection.
- Jason Summers' jslife pattern collection. Retrieved on January 5, 2020.
- Dongook Lee (December 19, 2014). Re: Soup search results (discussion thread) at the ConwayLife.com forums
External links
- 104P177.1 at Heinrich Koenig's Game of Life Object Catalogs
- Karel's p177 at Adam P. Goucher's Catagolue (as recognized by apgsearch < 4.0)
- Karel's p177 at Adam P. Goucher's Catagolue (extended)
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