# A146858 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 5
7 17
8 43
9 153
10 711
11 4787
12 36997
13 323223
14 3456487
15 47029493
16 778875019
17 15666901145
18 390119856899
19 11978383979491
20 447614381910255
21 20341843546977767