#N Pentoad 1H2
#C A period 5 oscillator.
#C www.conwaylife.com/wiki/Pentoad_1H2
x = 15, y = 12, rule = b3/s23
8b2o5b$8bobo2b2o$9b3ob2o2$5b2o8b$6bo8b$6bo8b$6b2o7b$2b2o11b$bobo11b$bo
13b$2o!