p146 pi-heptomino hassler

	p146 pi-heptomino hassler
	<a href="/wiki/File:P146piheptominohassler.png" class="image" title="p146 pi-heptomino hassler image"><img alt="p146 pi-heptomino hassler image" src="/w/images/4/40/P146piheptominohassler.png" decoding="async" width="385" height="265" /></a>
	<a href="/wiki/File:P146piheptominohassler.png" class="image" title="p146 pi-heptomino hassler image"><img alt="p146 pi-heptomino hassler image" src="/w/images/4/40/P146piheptominohassler.png" decoding="async" width="385" height="265" /></a>
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Pattern type	Oscillator
Number of cells	52
Bounding box	30 × 24
Period	146 (mod: 146)
Heat	39.6
Volatility	0.93 \| 0.88
Kinetic symmetry	Unspecified
Discovered by	Mitchell Riley; ljkiernan1; Evin; cvojan
Year of discovery	2022
Rules
Outer-totalistic rules	B3/S23 only
# of rules	20 = 1
Isotropic rules	B3/S23 – B3/S234c
Glider synthesis
Fewest gliders	20†
Catagolue-generated RLE	synthesis
	†Can be constructed with 15 gliders using the reverse caber tosser universal constructor.
Pattern files
Plaintext	p146piheptominohassler.cells
RLE	p146piheptominohassler.rle
Identifiers
apgcode	xp146_4s0gyica23zw11y2ei0iezwo8a6y21zy466w4acxsexes

p146 pi-heptomino hassler (or 52P146) is a period-146 oscillator found by Mitchell Riley and ljkiernan1 on July 6, 2022 using a symmetric variant of CatForce.^[1]^[2] It was later monomerized by Evin^[3] and reduced further by cvojan^[4] into its current 52-cell form. It is currently the smallest known oscillator of this period.

References

↑ Mitchell Riley (July 6, 2022). Message in #cgol on the Conwaylife Lounge Discord server
↑ Mitchell Riley (July 6, 2022). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
↑ EvinZL (July 6, 2022). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
↑ cvojan (July 6, 2022). Message in #cgol on the Conwaylife Lounge Discord server