# A084941 (b-file synthesized from sequence entry)
0 1
1 1
2 8
3 168
4 6720
5 436800
6 41932800
7 5577062400
8 981562982400
9 220851671040000
10 61838467891200000
11 21086917550899200000
12 8603462360766873600000
13 4138265395528866201600000
14 2317428621496165072896000000