# A068114 (b-file synthesized from sequence entry)
1 1
2 4
3 96
4 384
5 34560
6 4147200
7 23224320
8 6220800
9 99532800
10 1605264998400
11 10319560704000
12 52973744947200
13 2517312359890944000
14 137731736862720000
15 104125193068216320000
16 1039086126666344300544000000