x = 51, y = 16, rule = B3678/S34678
4bo41bo$4b3o37b3o$bob3obo35bob3obo$oob5o35b5oboo$bob3obo35bob3obo$4b3o
37b3o$4bo41bo7$25bo$24b3o$25bo!
A reaction in which two p32 ships collide to form an explosion which
then reacts with a period 4 oscillator to form a c/7 period 14 ship.
To be reproducable, the period 4 oscillator has to be recreated.
David I. Bell, May 1997