# A148482 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 6
4 20
5 75
6 292
7 1170
8 4851
9 20563
10 89106
11 392367
12 1751226
13 7905810
14 36027971
15 165554708
16 766145002
17 3567650698
18 16703779512
19 78583666074
20 371279300826
21 1760834565971
22 8379438799419
23 39998229564078
24 191455464627359
25 918719826472986
26 4418636543517328
27 21295915716871996
28 102832480619165634