# A012842 (b-file synthesized from sequence entry)
0 1
1 6
2 128
3 7000
4 757760
5 137329280
6 37511412352
7 14396574922496
8 7385535722319872
9 4879586077682790400
10 4034467892180241121280
11 4080124101723746610511872
12 4954185596977233058289319936