#N Fumarole
#O Dean Hickerson
#C A period 5 oscillator found in September 1989.
#C www.conwaylife.com/wiki/index.php?title=Fumarole
x = 8, y = 7, rule = B3/S23
3b2o3b$bo4bob$bo4bob$bo4bob$2bo2bo2b$obo2bobo$2o4b2o!