#N Octagon 2
#O Sol Goodman and Arthur Taber
#C The first known period 5 oscillator.
#C www.conwaylife.com/wiki/index.php?title=Octagon_2
x = 8, y = 8, rule = B3/S23
3b2o3b$2bo2bo2b$bo4bob$o6bo$o6bo$bo4bob$2bo2bo2b$3b2o!