# A306844 (b-file synthesized from sequence entry)
1 1
2 1
3 2
4 3
5 7
6 14
7 36
8 83
9 212
10 532
11 1379
12 3577
13 9444
14 25019
15 66943
16 179994
17 487031
18 1323706
19 3614622
20 9907911