# A012178 (b-file synthesized from sequence entry)
0 1
1 -1
2 -15
3 -561
4 -38623
5 -4206881
6 -661302639
7 -140958927825
8 -38921417469119
9 -13433349471318337
10 -5625858245527551439
11 -2783882722627688439921
12 -1585166024021465157765535