# A032337 (b-file synthesized from sequence entry)
1 2
2 2
3 0
4 0
5 0
6 720
7 10080
8 241920
9 5080320
10 108864000
11 2474841600
12 60833203200
13 1569209241600
14 42978897561600
15 1265828788224000
16 38916389191680000
17 1280474741145600000
18 44189183316934656000