# A086803 (b-file synthesized from sequence entry)
1 1
2 6
3 40
4 1728
5 10560
6 604800
7 4386816
8 348364800
9 76859228160
10 490311843840
11 172454510592000
12 6951148594790400
13 54188395462656000
14 5673488083845120000
15 2112698895984230400000
16 458667310457770160947200