# A068338 (b-file synthesized from sequence entry)
1 1
2 3
3 23
4 368
5 8624
6 324864
7 15399936
8 985595904
9 79833268224
10 8115008716800
11 968747865292800
12 139499692602163200
13 23346005516963020800
14 4614592869368384716800
15 1045883450064438558720000