# A152633 (b-file synthesized from sequence entry)
1 1
2 2
3 6
4 24
5 120
6 720
7 5040
8 40320
9 337920
10 3074400
11 30083040
12 318394848
13 3670837024
14 46156955440
15 601879734872
16 8464853630808