# A131322 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 5
4 12
5 23
6 51
7 103
8 221
9 456
10 965
11 2009
12 4227
13 8833
14 18540
15 38803
16 81363
17 170399
18 357145
19 748176
20 1567849
21 3284833
22 6883059
23 14421533
24 30218028
25 63314735
26 132664227
27 277968871
28 582428789
29 1220356440
30 2557009709