145P20
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| 145P20 | |||||||||
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| Pattern type | Oscillator | ||||||||
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| Number of cells | 145 | ||||||||
| Bounding box | 28 × 21 | ||||||||
| Period | 20 | ||||||||
| Mod | 20 | ||||||||
| Heat | 72.8 | ||||||||
| Volatility | 0.60 | ||||||||
| Strict volatility | 0.18 | ||||||||
| Discovered by | Noam Elkies | ||||||||
| Year of discovery | 1995 | ||||||||
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145P20 is an unnamed period 20 oscillator. It was the first non-trivial period 20 oscillator to be found, and was discovered by Noam Elkies on March 22, 1995.[1]
It works by using sparks from three period 4 middleweight emulators and the period 5 middleweight volcano to hassle a traffic light predecessor. The middleweight emulator on the left can be replaced with a middleweight volcano.
References
External links
Categories:
- Patterns
- Oscillators with between 140 and 149 cells
- Periodic objects with minimum population between 140 and 149
- Patterns with between 140 and 149 cells
- Patterns found by Noam Elkies
- Patterns found in 1995
- Outer-totalistically endemic patterns
- Oscillators
- Oscillators with period 20
- Oscillators with mod 20
- Oscillators with heat 72
- Oscillators with volatility 0.60
- Oscillators with strict volatility 0.18
- Unnamed periodic objects