# A012091 (b-file synthesized from sequence entry)
0 1
1 -1
2 5
3 -109
4 4521
5 -330681
6 36468717
7 -5721101541
8 1205289090513
9 -328897528901361
10 112769846051251797
11 -47472161654530776285
12 24068680135210975714425
13 -14466929567049590650593705