# A012554 (b-file synthesized from sequence entry)
0 1
1 2
2 8
3 110
4 520
5 80458
6 -4654604
7 820778478
8 -157200016272
9 41164154565906
10 -13482969489167252
11 5454988601609663734
12 -2666562535164656750936
13 1549911678027846498248986
14 -1056435556882844258622185948
15 834565745980558555804948223614