# A092031 (b-file synthesized from sequence entry)
1 1
2 2
3 3
4 8
5 20
6 45
7 144
8 448
9 1680
10 4725
11 17280
12 62208
13 290304
14 1254400
15 4465125
16 18144000
17 72990720
18 391910400
19 1881169920
20 9754214400
21 45660160000
22 205752960000
23 905748480000
24 5280992640000
25 28326238617600
26 162956344320000