# A117415 (b-file synthesized from sequence entry)
0 0
1 0
2 1
3 12
4 272
5 9920
6 530688
7 39144448
8 3807514624
9 472197021696
10 72722212782080
11 13616619646091264
12 3046271659520557056
13 802494810618175946752
14 245880605613803859607552
15 86696940704285991905525760
16 34855851028500677184683245568