#N 1-cell-methuselah-538.rle
#O toroidalet, 20 Nov 2023
#C
#C This is a 1-cell methuselah with a remarkable lifespan of
#C 538 generations, the longest lifespan of a 1-cell methuselah 
#C known as of Feb 2024.
#C
#C Reference:
#C https://conwaylife.com/forums/viewtopic.php?p=171540#p171540
x = 1, y = 1, rule = B1e2in3ck4-iknty5q7c8/S12-e3-ai4-ejkqy5ry6ce8
o!