# A013171 (b-file synthesized from sequence entry)
0 2
1 -5
2 -55
3 -1535
4 -80695
5 -6860075
6 -859242475
7 -148907237375
8 -34123911391375
9 -9992873727945875
10 -3640782796679981875
11 -1615246696514236394375
12 -857352190238672679484375