# A107377 (b-file synthesized from sequence entry)
0 0
1 1
2 1
3 2
4 5
5 19
6 84
7 393
8 1865
9 8886
10 42381
11 202187
12 964640
13 4602409
14 21958729
15 104768258
16 499864605
17 2384926971
18 11378834836
19 54290082897
20 259025915025
21 1235850473974
22 5896423120549
23 28132695944723
24 134225201438720