x = 36, y = 20
26bo$26bobo$26boo5$19bo$18bo$18b3o$$10bobo$10bo3bo$14bo7bo$oo8bo4bo4b
4o$oo12bo4boboboo9boo$10bo3bo3bobbob3o8boo$10bobo6boboboo$20b4o$22bo!
An in-line inverter (NOT gate) for period 30 glider streams.
David I. Bell, 1992
