# A149856 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 13
4 37
5 119
6 397
7 1364
8 4718
9 16679
10 60629
11 223411
12 831697
13 3115490
14 11781657
15 45056702
16 173446087
17 671335261
18 2610604193
19 10205624491
20 40127858406
21 158396721706
22 627451787342
23 2493938507817
24 9946087760078
25 39803742369745
26 159716582107213
27 642487259246869
28 2590943237172682