42P38: Difference between revisions
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The [[LCM oscillator]]s 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. | The [[LCM oscillator]]s 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. | ||
The patterns are shown with visible [[envelope]] to highlight interactions between subpatterns. | The patterns are shown with visible [[envelope]] to highlight interactions between subpatterns. | ||
{{gallery top}} | |||
{{gallery item|{{EmbedViewer | |||
|pname = moldon42p38 | |||
|pname = moldon42p38 | |viewerconfig = #C [[ THUMBSIZE 2 HEIGHT 400 ZOOM 14 GPS 24 THEME Book STARTFROM 76 ]] | ||
|position = center | |position = center | ||
|caption = 54P76 with [[mold]] | |caption = 54P76 with [[mold]] | ||
|style = width:300px; | |||
|apgcode = xp76_wo4an7y4o8zx11y4321z0g7y1317z73yfe7zy8746y17zy2gs26 | |apgcode = xp76_wo4an7y4o8zx11y4321z0g7y1317z73yfe7zy8746y17zy2gs26 | ||
}} | }}}} | ||
{{gallery item|{{EmbedViewer | |||
|pname = figureeighton42p38 | |pname = figureeighton42p38 | ||
|viewerconfig = #C [[ THUMBSIZE 2 HEIGHT 400 ZOOM 14 GPS 24 THEME Book STARTFROM 152 ]] | |||
|position = center | |position = center | ||
|caption = 54P152 with [[figure eight]] | |caption = 54P152 with [[figure eight]] | ||
|style = width:300px; | |||
|apgcode = xp152_y2178czy8s4cy1szsoyfesz01sy1ogszy9o8gzgggeeey532z333 | |apgcode = xp152_y2178czy8s4cy1szsoyfesz01sy1ogszy9o8gzgggeeey532z333 | ||
}} | }}}} | ||
{{gallery item|{{EmbedViewer | |||
|pname = 34p14shuttleon42p38 | |pname = 34p14shuttleon42p38 | ||
|viewerconfig = #C [[ THUMBSIZE 2 HEIGHT 400 ZOOM 12 GPS 24 THEME Book STARTFROM 266 ]] | |||
|position = center | |position = center | ||
|caption = 76P266 with [[34P14 shuttle]] | |caption = 76P266 with [[34P14 shuttle]] | ||
|style = width:300px; | |||
|apgcode = xp266_033y133y544402331zo4maxam4oy4o8yaok46z1ppy1pp1x8ox111y34kszy8311zyk46620111 | |apgcode = xp266_033y133y544402331zo4maxam4oy4o8yaok46z1ppy1pp1x8ox111y34kszy8311zyk46620111 | ||
}} | }}}} | ||
{{gallery item|{{EmbedViewer | |||
|pname = p18biblockhassleron42p38 | |pname = p18biblockhassleron42p38 | ||
|viewerconfig = #C [[ THUMBSIZE 2 HEIGHT 400 ZOOM 12 GPS 24 THEME Book STARTFROM 342 ]] | |||
|position = center | |position = center | ||
|caption = 85P342 with [[p18 bi-block hassler]] | |caption = 85P342 with [[p18 bi-block hassler]] | ||
|style = width:300px; | |||
|apgcode = xp342_xcu5jzy1125ce53zy1ccx26062y1ggzcc08ki16y6643zy3ey162ezy1e7yfsezyde8cy1ezy8o4czy711 | |apgcode = xp342_xcu5jzy1125ce53zy1ccx26062y1ggzcc08ki16y6643zy3ey162ezy1e7yfsezyde8cy1ezy8o4czy711 | ||
}} | }}}} | ||
{{gallery bottom}} | |||
==References== | ==References== | ||
Revision as of 18:24, 8 May 2023
| 42P38 | |||||||||
| View static image | |||||||||
| 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 some LCM oscillators and a period-38 honey farm hassler:
| p38 honey farm hassler found by David Raucci (base reaction), Mitchell Riley (sparker), and wwei23 (combination) on April 21, 2023 (click above to open LifeViewer) RLE: here Plaintext: here |
Carson Cheng found a 22-glider synthesis of 42P38 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. The patterns are shown with visible envelope to highlight interactions between subpatterns.
| 54P152 with figure eight (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
| 76P266 with 34P14 shuttle (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
| 85P342 with p18 bi-block hassler (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
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
Categories:
- 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