# A295237 (b-file synthesized from sequence entry) 0 1 1 1 2 4 3 29 4 320 5 4741 6 88384 7 1988489 8 52448000 9 1587545161 10 54252120064 11 2066298252149 12 86799115489280 13 3986897970744781 14 198795278022098944 15 10694247962623751009 16 617392620634705756160 17 38074395493710549747601 18 2498063366053169206657024 19 173745719989547715852773069