# A085081 (b-file synthesized from sequence entry)
1 1
2 2
3 3
4 4
5 1680
6 2162160
7 586051200
8 5967561600
9 1220096908800
10 33371339479827148800
11 10221346459144248675287040000
12 1065516759202418135010355181075171069914644480000000