#N Figure eight on rattlesnake
#C The smallest known period-88 oscillator.
#C http://conwaylife.com/wiki/Figure_eight_on_rattlesnake
x = 20, y = 15, rule = B3/S23
8b2o8b2o$8bo7bob2o$9bo5bo$8b2o8bo$14b2obo$14b2o2$5b2o$5bob2o$2obobobob
o$ob2obobo$6bo2b3o$7b2o3bo$9b3o$9bo!