# A003732 (b-file synthesized from sequence entry) 1 5 2 130 3 1660 4 16820 5 152230 6 1275680 7 10154290 8 77897010 9 581452680 10 4250594690 11 30572999140 12 217099260110 13 1525905283670 14 10636695448300 15 73649615037480 16 507171127397480 17 3476871213780220 18 23747634842538120