# A006864 (b-file synthesized from sequence entry)
1 0
2 1
3 2
4 6
5 14
6 37
7 92
8 236
9 596
10 1517
11 3846
12 9770
13 24794
14 62953
15 159800
16 405688
17 1029864
18 2614457
19 6637066
20 16849006
21 42773094
22 108584525
23 275654292
24 699780452
25 1776473532
26 4509783909
27 11448608270
28 29063617746
29 73781357746
30 187302518353
31 475489124976