# A149942 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 15
4 49
5 172
6 627
7 2364
8 9178
9 36322
10 146349
11 598798
12 2479100
13 10377197
14 43854651
15 186810219
16 801663799
17 3462831008
18 15043186516
19 65697663852
20 288296368358
21 1270513998501
22 5621498699217
23 24963796571708
24 111226042313882
25 497111195713677
26 2228180310648286
27 10013702555716602