# A126401 (b-file synthesized from sequence entry)
0 1
1 14
2 64
3 300
4 1418
5 6736
6 32098
7 153274
8 732980
9 3508800
10 16808758
11 80562042
12 386258512
13 1852391310
14 8885102252
15 42623064868
16 204486065796
17 981089277884
18 4707294583320
19 22586391528066
20 108375512842272
21 520021938034950