#N Kok's galaxy
#O Jan Kok
#C A period 8 oscillator that was found in 1971.
#C www.conwaylife.com/wiki/index.php?title=Kok's_galaxy
x = 9, y = 9, rule = 23/3
2bo2bobob$2obob3ob$bo6bo$2o5bob2$bo5b2o$o6bob$b3obob2o$bobo2bo!