#N unusual-ruler.rle
#O gameoflifeboy, 30 June 2015
#C
#C A single block appears to create a normal ruler sequence for a
#C while, but at generation 2^19 wickstretchers extend out and form a
#C square. As it turns out, squares form at generations 8*4, 8*(4 + 
#C 2^4), 8*(4 + 2^4 + 2^2^4), 8*(4 + 2^4 + 2^2^4 + 2^2^2^4)..., the 
#C 4th term of which has over 19000 digits.
#C
#C Reference:
#C https://conwaylife.com/forums/viewtopic.php?p=20889#p20889
x = 2, y = 2, rule = 34568/2/10
2A$2A!
