# A009176 (b-file synthesized from sequence entry)
0 1
1 0
2 -12
3 -216
4 -5296
5 -168128
6 -5391680
7 38412672
8 61881368832
9 16576603568128
10 4120672559178752
11 1085659391947229184
12 313198080458495610880
13 99633528964523733598208
14 34860299883730859703910400