# A057966 (b-file synthesized from sequence entry)
5 1
6 156
7 15
8 14196
9 2730
10 140
11 984256
12 283920
13 29120
14 1050
15 57578976
16 22145760
17 3407040
18 245700
19 6951
20 2994106752
21 1439474400
22 295276800
23 31941000
24 1807260
25 42525
26 142719088512
27 82337935680
28 21112291200
29 3045042000
30 258438180