# A037536 (b-file synthesized from sequence entry)
1 1
2 5
3 16
4 49
5 149
6 448
7 1345
8 4037
9 12112
10 36337
11 109013
12 327040
13 981121
14 2943365
15 8830096
16 26490289
17 79470869
18 238412608
19 715237825
20 2145713477
21 6437140432
22 19311421297
23 57934263893
24 173802791680
25 521408375041