# A009515 (b-file synthesized from sequence entry)
0 0
1 2
2 8
3 -24
4 -4544
5 -333920
6 -26272896
7 -2354853760
8 -233143441408
9 -22905309777408
10 -1339233237800960
11 428177363623094272
12 310125853369485017088
13 153488683972244927062016
14 72759436391841580585680896