# A146451 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 11
9 23
10 43
11 147
12 439
13 1275
14 4541
15 20063
16 98055
17 505355
18 2950723
19 18858815
20 128249637
21 989759495
22 8490117733