# A187995 (b-file synthesized from sequence entry)
1 1
2 3
3 4
4 17
5 45
6 176
7 644
8 2983
9 13675
10 67487
11 340192
12 1775300
13 9438436
14 51112686
15 281006680
16 1565898705
17 8826775421
18 50268025897
19 288898607594
20 1674035743383
21 9772219545537
22 57429659103938
23 339574982244340
24 2019144043582652
25 12067931396139136