48P22.1

	48P22.1
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Pattern type	Oscillator
Number of cells	48
Bounding box	18 × 18
Period	22
Mod	22
Heat	56
Volatility	1.00
Strict volatility	1.00
Discovered by	Nicolay Beluchenko
Year of discovery	2009
Rules
Outer-totalistic rules	B3/S23 – B38/S2378
# of rules	23 = 8
Isotropic rules	B3/S23 – B34e5y8/S234cy5cey6cin78
Glider synthesis
Fewest gliders	32†
Catagolue-generated RLE	synthesis
	†Can be constructed with 15 gliders using the reverse caber tosser universal constructor.
Pattern files
Plaintext	48p22.1.cells
RLE	48p22.1.rle
Identifiers
apgcode	xp22_occsgwssg0pfezwccey2scczwss602eew2ecc6zx11
Pentadecathlon ID	48P22.1

48P22.1 is an unnamed period-22 oscillator, discovered by Nicolay Beluchenko on 4 March 2009.^[1] It first appeared semi-naturally on Catagolue in July 2016, in a haul submitted by Tanner Jacobi.^[2]

Every cell in this oscillator has a period of 22, making it the first known strictly volatile period-22 oscillator.

A 48-glider synthesis for the oscillator was found before April 27, 2019,^[3] which was later improved to 36 gliders.^[4]

References

↑ Jason Summers' pattern collections.
↑ Apple Bottom (July 9, 2016). Re: Soup search results (discussion thread) at the ConwayLife.com forums
↑ Jeremy Tan (April 19, 2019). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
↑ GUYTU6J (February 19, 2022). Re: Soup-based syntheses (discussion thread) at the ConwayLife.com forums

New Oscillators at Game of Life News. Posted by Heinrich Koenig on May 31, 2009.
48P22.1 at Adam P. Goucher's Catagolue
48P22.1 at Heinrich Koenig's Game of Life Object Catalogs