# A011957 (b-file synthesized from sequence entry)
1 0
2 1
3 1
4 1
5 1
6 2
7 3
8 6
9 10
10 18
11 31
12 59
13 105
14 198
15 365
16 688
17 1285
18 2438
19 4599
20 8755
21 16647
22 31806
23 60787
24 116570
25 223696
26 430290
27 828514
28 1598025
29 3085465
30 5965612
31 11545611
32 22370304
33 43383539
34 84216330
35 163617801
36 318148208
37 619094385
38 1205609454
39 2349383925
40 4581307186
41 8939118925
42 17452582356