# A026689 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 6
4 18
5 27
6 82
7 138
8 390
9 644
10 1837
11 3242
12 8835
13 15271
14 42086
15 76403
16 203377
17 361636
18 974089
19 1802727
20 4718991
21 8559441
22 22673687
23 42562209
24 110006420
25 202537249
26 529643894
27 1005279834
28 2572145945
29 4791823354