# A093456 (b-file synthesized from sequence entry)
1 1
2 1
3 24
4 720
5 2520
6 120960
7 259459200
8 1357171200
9 4929724800
10 42608389824000
11 11912739135897600
12 59907396092544000
13 20458385028297216000
14 7926428532945162240000
15 4693751193479184764928000
16 328774885640356760904499200000
17 12797917159224592605450240000