# A019501 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 1
4 1
5 1
6 1
7 7
8 28
9 84
10 210
11 462
12 924
13 1758
14 3444
15 7602
16 19278
17 52458
18 142044
19 368130
20 905136
21 2130198
22 4895919
23 11280885
24 26685540
25 65491062
26 165584034
27 423910572
28 1080774261
29 2717940687
30 6731334225
31 16494155097
32 40308269022