#N Pre-pulsar shuttle 58
#O Tanner Jacobi
#C Period-58 oscillator with a 50% smaller population
#C than the previous Snark-based record.
#C www.conwaylife.com/wiki/Pre-pulsar_shuttle_58
x = 25, y = 27, rule = B3/S23
2b2obo13bob2o$2bob2o13b2obo2$3b3o13b3o$2bo2bo13bo2bo$2b2o17b2o2$2b4o
13b4o$2bo2bo13bo2bo$3bo5bo5bo5bo$3o5b3o3b3o5b3o$o23bo4$o23bo$3o19b3o$
3bo17bo$2bo2bo13bo2bo$2b4o13b4o2$2b2o17b2o$2bo2bo13bo2bo$3b3o13b3o2$2b
ob2o13b2obo$2b2obo13bob2o!