# A125501 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 14
4 42
5 132
6 430
7 1444
8 4981
9 17594
10 63442
11 232828
12 867145
13 3269034
14 12446307
15 47767466
16 184508963
17 716386598
18 2793067210
19 10926148172
20 42857189054
21 168471757292
22 663434825367
23 2616336659586
24 10329939578230