# A111816 (b-file synthesized from sequence entry)
0 0
1 1
2 -1
3 -3
4 150
5 1236
6 -2555748
7 -64342116
8 5885700899760
9 442646611978752
10 -1737387344860364226240
11 -367706581563500487774720
12 60788555325888838346137808787840
13 34626906551623392401873575206240000
14 -237458311254822429335982538087618909465992960