# A155445 (b-file synthesized from sequence entry)
5 1
6 4
7 10
8 19
9 40
10 123
11 434
12 1945
13 8733
14 42692
15 242511
16 1635703
17 12770421
18 112939524
19 1121434189
20 12675288592
21 164781726936