# A013147 (b-file synthesized from sequence entry)
0 2
1 -12
2 488
3 -55552
4 12546944
5 -4711567872
6 2650074624000
7 -2084720933010432
8 2185097305985613824
9 -2943182792681798926336
10 4953485656236312191369216
11 -10186669183126638973192372224