# A149509 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 11
4 47
5 155
6 579
7 2233
8 8593
9 33469
10 135037
11 537525
12 2178673
13 8924945
14 36519777
15 150647219
16 626290259
17 2602163219
18 10874068199
19 45661251703
20 191802674707
21 808778179043
22 3422465929651
23 14489849379543
24 61521249901323
25 261890744544831
26 1115495062342795
27 4761600058102759