# A126536 (b-file synthesized from sequence entry) 0 1 1 15 2 135 3 1265 4 11945 5 112969 6 1068723 7 10111095 8 95661377 9 905057497 10 8562802623 11 81013191559 12 766470702689 13 7251625683041 14 68608069306975 15 649105094579799 16 6141222571633425 17 58102478303643985 18 549711062520950431