# A032322 (b-file synthesized from sequence entry)
1 3
2 6
3 48
4 432
5 5760
6 83520
7 1572480
8 32659200
9 792529920
10 21337344000
11 642820147200
12 21181450752000
13 763681830912000
14 29769991592140800
15 1250889916243968000
16 56282514026618880000
17 2701972433782702080000