#N Blinkers bit pole
#O Robert Wainwright
#C A period 2 oscillator found in June 1977.
#C www.conwaylife.com/wiki/index.php?title=Blinkers_bit_pole
x = 7, y = 6, rule = B3/S23
5b2o$3obobo2$bobo2bo$o4bob$2o3bo!