#N Harbor
#O David Buckingham
#C A period 5 oscillator found in September 1978.
#C www.conwaylife.com/wiki/index.php?title=Harbor
x = 17, y = 17, rule = B3/S23
5b2o3b2o5b$5bobobobo5b$6bo3bo6b2$5b2o3b2o5b$2o2bobo3bobo2b2o$obob2o5b
2obobo$bo13bob2$bo13bob$obob2o5b2obobo$2o2bobo3bobo2b2o$5b2o3b2o5b2$6b
o3bo6b$5bobobobo5b$5b2o3b2o!