# A048211 (b-file synthesized from sequence entry)
1 1
2 2
3 4
4 9
5 22
6 53
7 131
8 337
9 869
10 2213
11 5691
12 14517
13 37017
14 93731
15 237465
16 601093
17 1519815
18 3842575
19 9720769
20 24599577
21 62283535
22 157807915
23 400094029
24 1014905643
25 2576046289
26 6541989261
27 16621908599