#N 1-2-3 #O Dave Buckingham #C A period 3 oscillator that was found in August 1972. x = 10, y = 9, rule = B3/S23 2b2o6b$o2bo6b$2obob2o3b$bobo2bo3b$bo4bob2o$2b3obob2o$5bo4b$4bo5b$4b2o!