# A072535 (b-file synthesized from sequence entry)
1 2
2 3
3 5
4 11
5 31
6 53
7 137
8 349
9 1109
10 3203
11 7639
12 18481
13 49037
14 85999
15 184073
16 700067
17 3056791
18 6813649
19 26554529
20 81063721
21 399718069
22 1042627301
23 4240371853
24 10496135659
25 77922909413
26 187334225803
27 983105631451
28 2856447889481