# A000675 (b-file synthesized from sequence entry)
0 1
1 1
2 0
3 1
4 1
5 1
6 2
7 4
8 5
9 10
10 19
11 36
12 68
13 138
14 277
15 581
16 1218
17 2591
18 5545
19 12026
20 26226
21 57719
22 127685
23 284109
24 634919
25 1425516
26 3212890
27 7269605
28 16504439
29 37592604
30 85876345
31 196717882
32 451768247
33 1039990913
34 2399476030
35 5547849750