# A319380 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 2
5 3
6 5
7 9
8 17
9 30
10 53
11 94
12 169
13 303
14 543
15 968
16 1728
17 3080
18 5491
19 9776
20 17415
21 31008