Eater plug

	Eater plug
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Pattern type	Oscillator
Number of cells	14
Bounding box	8×8
Frequency class	34.1
Period	2
Mod	2
Heat	2
Volatility	0.13
Strict volatility	0.13
Rotor type	Diagonal on-off
Discovered by	Robert Wainwright
Year of discovery	1973
Rules
Outer-totalistic rules	B3/S23 – B378/S01235678
Important rules	Conway Life
# of rules	28 = 256
Isotropic rules	B3j/S2-in3jnr – B2cik34-ajnw5-q6-n78/S01234-k5678
Glider synthesis
Fewest gliders	8
Catagolue-generated RLE	eaterplug_synth.rle
Uploaded synthesis RLE	eaterplug_synth.rle
Pattern files
Plaintext	eaterplug.cells
RLE	eaterplug.rle
Identifiers
apgcode	xp2_wo44871z6221
Pentadecathlon ID	14P2.18

Eater plug (or cavity^[1]) is an extensible period-2 oscillator that was found in February 1973 by Robert Wainwright.^[2] Its name derives from its resemblance to two diagonally-touching eater 1s.

It has an identical rotor to the great on-off, which is interestingly over 1000 times more common than it despite its size.

Commonness

Eater plug is about the fifty-fifth most common naturally-occurring oscillator in Achim Flammenkamp's census.^[3]

↑ Eric Weisstein. "Cavity". Eric Weisstein's Treasure Trove of Life. Retrieved on April 26, 2009.
↑ Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.