# A012492 (b-file synthesized from sequence entry)
0 1
1 -1
2 13
3 -325
4 14873
5 -1157705
6 123919013
7 -19431568013
8 3783114987057
9 -997881588156817
10 307028543021467965
11 -122601833964174456533
12 54600351690827520350281
13 -30810847280896713474456025