# A251712 (b-file synthesized from sequence entry)
0 0
1 0
2 0
3 1
4 0
5 0
6 0
7 1
8 2
9 4
10 8
11 15
12 30
13 60
14 120
15 239
16 476
17 948
18 1888
19 3761
20 7492
21 14924
22 29728
23 59217
24 117958
25 234968
26 468048
27 932335
28 1857178
29 3699432
30 7369136
31 14679055
32 29240152
33 58245336
34 116022624
35 231112913
36 460368648
37 917037864
38 1826706592
39 3638734129