# A007313 (b-file synthesized from sequence entry)
1 1
2 -1
3 -3
4 -41
5 -1035
6 -40721
7 -2291331
8 -174783865
9 -17394878523
10 -2192620580129
11 -341767803858867
12 -64587124941406473
13 -14555427555355014123
14 -3857289820949315456817