# A012458 (b-file synthesized from sequence entry)
0 2
1 -16
2 488
3 -30336
4 3303072
5 -556926720
6 135234491520
7 -44790227865600
8 19434264780034560
9 -10703464305128755200
10 7296385856008015226880
11 -6031102564833737842851840
12 5942962739028147945628999680