Jack

Jack
x = 13, y = 9, rule = B3/S23 3bo5bo$3b2o3b2o$o2b2o3b2o2bo$3o2bobo2b3o$5bobo$3o2bobo2b3o$o2b2o3b2o2b o$3b2o3b2o$3bo5bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 2 ZOOM 18 LOOP 4 ]]
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Pattern type	Oscillator
Number of cells	42
Bounding box	13×9
Period	4
Mod	4
Heat	31
Volatility	0.57
Strict volatility	0.10
Discovered by	Robert Wainwright
Year of discovery	1984
Rules Outer-totalistic rules B3/S23 – B378/S023678 Important rules Conway Life # of rules 26 = 64 Isotropic rules B3aijnq/S2-cn3ejr – B2in34-aitw5cikr6-i78/S0234-aqr5-ejq678
Glider synthesis Fewest gliders 19† Catagolue-generated RLE jack_synth.rle Uploaded synthesis RLE jack_synth.rle †Can be constructed with 16 gliders using the reverse caber tosser universal constructor.
Pattern files Plaintext jack.cells RLE jack.rle
Identifiers apgcode xp4_8op707po8zgoo555oogzw47074

Jack is a period-4 oscillator that was found by Robert Wainwright in April 1984. Its generations have 42, 44, 46 and 42 cells.

External links

• Jack at the Life Lexicon

• Jack at Adam P. Goucher's Catagolue