28P7.2: Difference between revisions
Jump to navigation
Jump to search
adding Catagolue link for stator variants |
Carson Cheng (talk | contribs) m Update synthesis cost |
||
| Line 17: | Line 17: | ||
|isorulemin = B3aceiy/S2-in3-ak | |isorulemin = B3aceiy/S2-in3-ak | ||
|isorulemax = B2n34ceqtwz5aek6-k78/S234-jn5-ky678 | |isorulemax = B2n34ceqtwz5aek6-k78/S234-jn5-ky678 | ||
|synthesis = | |synthesis = 16 | ||
|synthesisRLE = true | |synthesisRLE = true | ||
|plaintext = true | |plaintext = true | ||
Revision as of 13:11, 18 January 2023
| 28P7.2 | |||||||||||
| View animated image | |||||||||||
| View static image | |||||||||||
| Pattern type | Oscillator | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of cells | 28 | ||||||||||
| Bounding box | 12 × 11 | ||||||||||
| Period | 7 (mod: 7) | ||||||||||
| Heat | 5.1 | ||||||||||
| Volatility | 0.42 | 0.42 | ||||||||||
| Kinetic symmetry | Unspecified | ||||||||||
| Discovered by | Dean Hickerson | ||||||||||
| Year of discovery | 1998 | ||||||||||
| |||||||||||
| |||||||||||
| |||||||||||
| |||||||||||
28P7.2 is an unnamed period-7 oscillator discovered by Dean Hickerson in 1998. In terms of its 28 cells, it is tied with oscillators burloaferimeter, 28P7.1, and 28P7.3 as the smallest known period 7 oscillator.[1] In September, 2000 Mark Niemiec and Jason Summers found a 22-glider synthesis of this oscillator.[2]
A stator variant of this oscillator appeared semi-naturally on October 28, 2018, in a symmetric soup submitted to Catagolue by carybe.[3]
See also
- 37P10.1
- Eater bridge eater, the catalyst this oscillator is based on
References
- ↑ "Class 2 Objects Catalog". Retrieved on March 14, 2009.
- ↑ Jason Summers' jslife pattern collection.
- ↑ Park Shinhwan (January 6, 2019). Re: Soup search results (discussion thread) at the ConwayLife.com forums
External links
- 28P7.2 at Heinrich Koenig's Game of Life Object Catalogs
- All semi-natural stator variants of 28P7.2 (Catagolue)
Categories:
- Patterns
- Oscillators with 28 cells
- Periodic objects with minimum population 28
- Patterns with 28 cells
- Patterns found by Dean Hickerson
- Patterns found in 1998
- Patterns that can be constructed with 16 gliders
- Oscillators
- Oscillators with period 7
- Oscillators with mod 7
- Oscillators with heat 5
- Oscillators with volatility 0.42
- Oscillators with strict volatility 0.42
- Patterns with 180-degree rotation symmetry
- Unnamed periodic objects