# A372374 (b-file synthesized from sequence entry) 0 1 1 3 2 15 3 93 4 627 5 4368 6 30957 7 222015 8 1606803 9 11713260 10 85884660 11 632726988 12 4679850525 13 34729198260 14 258460942671 15 1928258130018 16 14416834880067 17 107993546227875 18 810319315565760 19 6089298408130707 20 45821042464807512 21 345217506895648767