# A149876 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 14
4 42
5 136
6 451
7 1546
8 5407
9 19191
10 69191
11 251867
12 925820
13 3430082
14 12789590
15 47974023
16 180826904
17 684611939
18 2601928569
19 9922514404
20 37956726661
21 145587887723
22 559808213755
23 2157340447787
24 8330424172574
25 32227003874198
26 124881479757620
27 484665714314689
28 1883659790434405