# A153952 (b-file synthesized from sequence entry)
0 1
1 2
2 2
3 4
4 5
5 8
6 11
7 40
8 59
9 169
10 555
11 1319
12 3615
13 20488
14 46826
15 218870
16 1193201
17 4783860
18 22240814
19 199704231
20 805091958
21 6227071279
22 56791304489
23 381075628434
24 2947943372020
25 45668975412143
26 300746133172408