# A058801 (b-file synthesized from sequence entry)
2 1
3 2
4 6
5 25
6 116
7 625
8 3757
9 25140
10 184511
11 1473861
12 12711339
13 117598686
14 1160399052
15 12152333659
16 134487937252
17 1566878426731
18 19154490559458