# A251708 (b-file synthesized from sequence entry)
0 0
1 0
2 1
3 0
4 0
5 0
6 1
7 2
8 4
9 7
10 14
11 28
12 56
13 111
14 220
15 436
16 865
17 1716
18 3404
19 6752
20 13393
21 26566
22 52696
23 104527
24 207338
25 411272
26 815792
27 1618191
28 3209816
29 6366936
30 12629345
31 25051352
32 49691432
33 98567072
34 195515953
35 387822090
36 769277244
37 1525925143
38 3026798934