# A012126 (b-file synthesized from sequence entry)
0 1
1 -3
2 49
3 -1971
4 147457
5 -17712131
6 3119521521
7 -757475512691
8 242537719364737
9 -99014166389423235
10 50196880291533920305
11 -30939568726951088808371
12 22784988607303653453394305