# A000691 (b-file synthesized from sequence entry)
0 1
1 2
2 3
3 5
4 9
5 16
6 29
7 52
8 94
9 175
10 327
11 616
12 1169
13 2231
14 4273
15 8215
16 15842
17 30628
18 59345
19 115208
20 224040
21 436343
22 850981
23 1661663
24 3248231
25 6356076
26 12448925
27 24402959
28 47873156
29 93984236
30 184632691
31 362938014
32 713852252
33 1404817026