x = 57, y = 23, rule = B36/S23 21bo$19b3o$18bo$18boo$$55boo$55bo$16bo36bobo$15b3o35boo$15bobo$15b3o5$ 35boo$oo33bo$bo31bobo$bobo23bo5boo7b3o$bboo23bo15bobo$8boo15boobo15boo $7boboo16bo17bo$8boo17bo! This is a period 144 glider gun which produces gliders in the irregular pattern 101110, where a 1 represents a glider and a 0 represents a "hole". This results from impacting a replicator against a period 24 glider gun. In general, it is not known what patterns are possible using these methods. Dean Hickerson, 1994