# A149979 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 16
4 58
5 223
6 903
7 3779
8 16193
9 70818
10 314743
11 1416706
12 6446429
13 29598120
14 136933180
15 637675007
16 2986393015
17 14055119005
18 66436372277
19 315240014710
20 1500917562356
21 7167968048581
22 34326088927797
23 164787986590447
24 792864539729057
25 3822579703261175
26 18463793240825038
27 89335475803429973