# A052903 (b-file synthesized from sequence entry)
0 1
1 2
2 4
3 8
4 17
5 36
6 76
7 161
8 341
9 722
10 1529
11 3238
12 6857
13 14521
14 30751
15 65121
16 137906
17 292042
18 618454
19 1309693
20 2773522
21 5873456
22 12438151
23 26340131
24 55780196
25 118125087
26 250152154
27 529744373
28 1121833637
29 2375694341
30 5030980901