42P38: Difference between revisions
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It is a delayed domino sparker, allowing for the construction of a [[Honey farm hasslers#p38|p38 honey farm hassler]] and some [[LCM oscillator]]s. | It is a delayed domino sparker, allowing for the construction of a [[Honey farm hasslers#p38|p38 honey farm hassler]] and some [[LCM oscillator]]s. | ||
[[Carson Cheng]] found a {{gliders|22}} synthesis of this oscillator on April 26, 2023.<ref name="message1100579873845690388" /> | [[Carson Cheng]] found a {{gliders|22}} synthesis of this oscillator on April 26, 2023.<ref name="message1100579873845690388" /><ref name="j4179541540" /> | ||
== LCM oscillators == | == LCM oscillators == | ||
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==References== | ==References== | ||
<references> | <references> | ||
<ref name="j4179541540">{{CiteCatagolueJob|job=4179541540|date=April 26, 2023}}</ref> | |||
<ref name="message1099006580030185472">{{CiteDiscord | <ref name="message1099006580030185472">{{CiteDiscord | ||
|author = mvr | |author = mvr | ||
Revision as of 05:17, 26 April 2023
| 42P38 | |||||||||
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| Pattern type | Oscillator | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of cells | 42 | ||||||||
| Bounding box | 25 × 27 | ||||||||
| Period | 38 (mod: 38) | ||||||||
| Heat | 45.5 | ||||||||
| Volatility | 0.93 | 0.87 | ||||||||
| Kinetic symmetry | Unspecified | ||||||||
| Discovered by | Mitchell Riley | ||||||||
| Year of discovery | 2023 | ||||||||
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42P38 is a small period-38 oscillator found by Mitchell Riley on April 21, 2023.[1] With only 42 cells, it is the smallest known period-38 oscillator by population; surpassing 44P38. It consists of an R-pentomino turning into an octomino II via fishhook, then turning back into an R-pentomino via a combination of a transparent blinker plus toad catalyst and hitting a second copy of itself.
It is a delayed domino sparker, allowing for the construction of a p38 honey farm hassler and some LCM oscillators.
Carson Cheng found a 22-glider synthesis of this oscillator on April 26, 2023.[2][3]
LCM oscillators
The LCM oscillators below are listed due to being the smallest known ones by population, while also satisfying the condition that at least one cell oscillates at the full period.
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References
- ↑ mvr (April 21, 2023). Message in #cgol on the Conwaylife Lounge Discord server
- ↑ carsoncheng (April 26, 2023). Message in #cgol on the Conwaylife Lounge Discord server
- ↑ shinjuku (#4179541540) (April 26, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.
External links
- Patterns
- Oscillators with 42 cells
- Periodic objects with minimum population 42
- Patterns with 42 cells
- Patterns found by Mitchell Riley
- Patterns found in 2023
- Patterns that can be constructed with 22 gliders
- Oscillators
- Oscillators with period 38
- Oscillators with mod 38
- Oscillators with heat 45
- Oscillators with volatility 0.93
- Oscillators with strict volatility 0.87
- R-pentomino hasslers
- Sparkers
- Sparkers with period 38
- Domino sparkers
- Strong sparkers