# A281131 (b-file synthesized from sequence entry)
0 1
1 3
2 7
3 13
4 23
5 41
6 98
7 223
8 437
9 699
10 1213
11 2624
12 4674
13 11163
14 21300
15 40858
16 73977
17 148591
18 297394
19 567076
20 1100738
21 2243474
22 4340628
23 8726122
24 17397270
25 34701556
26 68372147
27 136254352
28 271069771
29 546613630
30 1088921640
31 2163138108
32 4334318825