# A073509 (b-file synthesized from sequence entry) 1 0 2 1 3 15 4 127 5 1006 6 8230 7 70320 8 614821 9 5453140 10 48982456 11 444608278 12 4070532710 13 37535715441 14 348245215460 15 3247889171908 16 30429496751905 17 286235215995588 18 2702000272361599 19 25586688305447928 20 242978340446949438 21 2313264023790027111 22 22074118786158858975