# A067642 (b-file synthesized from sequence entry) 0 10 1 210 2 2992 3 37100 4 433620 5 4928798 6 55237824 7 614451348 8 6807871480 9 75275707584 10 831595048320 11 9185000522880 12 101470031154352 13 1121497913694390 14 12403035430713344 15 137266650274351716