# A076929 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 2
5 2
6 6
7 6
8 24
9 72
10 360
11 360
12 2160
13 2160
14 15120
15 75600
16 604800
17 604800
18 5443200
19 5443200
20 54432000
21 381024000
22 4191264000
23 4191264000
24 50295168000
25 251475840000
26 3269185920000
27 29422673280000
28 411917425920000