# A012805 (b-file synthesized from sequence entry)
0 1
1 -1
2 33
3 -1377
4 99649
5 -11796673
6 2017677153
7 -471591223841
8 144742585812609
9 -56447611418620289
10 27268126498786597537
11 -15985843319019939868385
12 11182140682997302960743361