# A146728 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 3
7 13
8 31
9 59
10 133
11 487
12 1853
13 8419
14 38423
15 183353
16 1033531
17 6717069
18 50468649
19 417543651
20 3765006993
21 38269269195
22 435116516817