# A012226 (b-file synthesized from sequence entry)
0 1
1 -5
2 129
3 -8189
4 972609
5 -186825429
6 53036534017
7 -20924521480269
8 10970414196349569
9 -7386311927549483045
10 6216439933812148586625
11 -6398271924540885631183389
12 7909256594572491509610323905