# A012497 (b-file synthesized from sequence entry)
0 1
1 -6
2 100
3 -4256
4 302352
5 -32245664
6 4879093440
7 -996485811712
8 264232448010496
9 -88283645811756544
10 36292696703112000512
11 -18004529956099757727744
12 10606618572326341265592320