Jack

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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 [[ THUMBSIZE 3 GPS 2 ZOOM 27 WIDTH 630 HEIGHT 550 LOOP 4 ]]
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

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

A 19-glider synthesis is known for this oscillator,[1] reusing the final step of an earlier 34-glider synthesis.[2]

x = 63, y = 63, rule = B3/S23 49bo$o48bobo10bo$b2o46b2o9b2o$2o59b2o3$37bobo$37b2o$38bo12$37b3o$37bo$ 38bo5$48b2o3b2o$47bo7bo$25bo2b2o3b2o2bo7bo4bobo4bo$25b4obobob4o7b4obob ob4o$30bobo16b2ob2o$25b4obobob4o7b4obobob4o$25bo2b2o3b2o2bo7bo4bobo4bo $47bo7bo$48b2o3b2o5$24bo$25bo$23b3o12$24bo$24b2o$23bobo3$2o59b2o$b2o9b 2o46b2o$o10bobo48bo$13bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 WIDTH 650 HEIGHT 650 THEME Book ZOOM 10 AUTOSTART GPS 12 T 0 PAUSE 1 T 20 PAUSE 3 T 89 PAUSE 1 T 98 PAUSE 2 LOOP 99 ]]
Final step of syntheses[1][2]
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See also

References

External links