# A318538 (b-file synthesized from sequence entry)
0 1
1 1
2 6
3 174
4 24360
5 15198120
6 38415132000
7 376482729702240
8 14139748304132048640
9 2040859528996474439366400
10 1141301651605590355550899891200
11 2494751188402618305982805631973248000
12 21474225685319103561274021904272069843353600