# A146629 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 7
7 21
8 47
9 215
10 1109
11 8005
12 71755
13 717641
14 8603611
15 133533027
16 2609017895
17 64328667073
18 1958813665949
19 72296633852443
20 3294639375085767
21 187627806470686453