# A125075 (b-file synthesized from sequence entry)
1 10
2 26
3 57
4 130
5 304
6 720
7 1653
8 3933
9 9489
10 22954
11 55860
12 136705
13 337951
14 843306
15 2110436
16 5311239
17 13432130
18 34143472
19 87069907
20 222858046
21 572210219
22 1473600000
23 3804733479