# A147371 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 3
7 9
8 19
9 42
10 149
11 642
12 3217
13 16918
14 103595
15 764774
16 6743975
17 68369223
18 809162389
19 11357687762
20 186710566988
21 3547308633892
22 78610913689329
23 2049663760103557
24 62999437730030008