#N Pentadecathlon on 38P7.2
#C A small non-trivial period 105 oscillator
#C www.conwaylife.com/wiki/index.php?title=Pentadecathlon_on_38
#C P7.2
x = 20, y = 12, rule = b3/s23
11bo3bo4b$7bo2bobobobo2bo$bo5bobo2bobo2bobo$bo6bo2b2ob2o2bob$obo9bobo
5b$bo7b2o5b2o2b$bo7bo7bo2b$bo9bo3bo4b$bo18b$obo5bo2bo3bo2bob$bo7b2o5b
2o2b$bo!