x = 116, y = 13, rule = B3678/S34678
18boo78boo$18bo79bo$13boo3bo3bo70boo3bo3bo$bboo9b8oboo58boo9b8oboo$6ob
oo3bob11o55b6oboo3bob11o$11obb13o54b11obb13o7b3o$b26o54b26o6b3o$11obb
13o54b11obb13o7b3o$6oboo3bob11o55b6oboo3bob11o$bboo9b8oboo58boo9b8oboo
$13boo3bo3bo70boo3bo3bo$18bo79bo$18boo78boo!
A p4 oscillator turns a rocket into a bit of junk, which a second rocket
can delete.  The deletion can be detected by another rocket passing by
at right angles, providing a counting device.
David I. Bell, April 1997
