# A012806 (b-file synthesized from sequence entry)
0 1
1 -1
2 -3
3 -165
4 1337
5 -356745
6 31874997
7 -5714452653
8 1296863374193
9 -357091592679441
10 131690816886952045
11 -56304582100478416309
12 29876409015019700748969
13 -18379375710670502969514905