# A012039 (b-file synthesized from sequence entry)
0 1
1 -1
2 1
3 111
4 -9407
5 957791
6 -131065791
7 23876150351
8 -5645293077119
9 1689130316350143
10 -625455343415905919
11 281176376077651011119
12 -150982531394396522439999
13 95493861079696805301099551