x = 65, y = 23, rule = B3678/S34678
18bobbobbobbobbobobobbobbobbobbo$16b33o$16b33o$18bobobobobobobobobobob
obobobobo13$6boo49boo$oob3obb49obb3oboo$65o$b63o$b63o$3b3obb49obb3o$6b
oo49boo!
A smaller period 440 spark oscillator.
This shows a stable slab that can be placed near some spark oscillators
which absorbes some of the sparks on one side to make it smaller.
David I. Bell, May 1997
