p18 bi-block hassler
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| p18 bi-block hassler | |||||||||
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| Pattern type | Oscillator | ||||||||
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| Number of cells | 43 | ||||||||
| Bounding box | 21 × 15 | ||||||||
| Period | 18 | ||||||||
| Mod | 18 | ||||||||
| Heat | 27.4 | ||||||||
| Volatility | 0.85 | ||||||||
| Strict volatility | 0.23 | ||||||||
| Discovered by | Noam Elkies | ||||||||
| Year of discovery | 1995 | ||||||||
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P18 bi-block hassler (or 43P18) is a period 18 oscillator discovered by Noam Elkies on February 20, 1995.[1] In terms of its 43 cells, it is the smallest known period 18 oscillator.[2][3] The unix on the bottom can be positioned in 2 places.
It is composed of two copies of unix that are hassling a bi-block, as shown below.
Image gallery
 Generation 14 reveals that the oscillator is made up of two copies of unix and a bi-block. |
References
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on June 16, 2009.
- ↑ "Class 2 Objects Catalog". Retrieved on April 11, 2009.
- ↑ Jason Summers' all-osc oscillators collection
External links
- 43P18.1 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Oscillators with 43 cells
- Periodic objects with minimum population 43
- Patterns with 43 cells
- Patterns found by Noam Elkies
- Patterns found in 1995
- Patterns that can be constructed with 15 gliders
- Oscillators
- Oscillators with period 18
- Oscillators with mod 18
- Oscillators with heat 27
- Oscillators with volatility 0.85
- Oscillators with strict volatility 0.23
- Sparkers
- Sparkers with period 18
- Weak sparkers