# A145084 (b-file synthesized from sequence entry) 0 1 1 4 2 36 3 524 4 10756 5 288764 6 9667476 7 390576684 8 18591797156 9 1023871865244 10 64308208060916 11 4553899456432844 12 360155907603064196 13 31561618500966519484 14 3044291843751868832596 15 321353247687162678690924