# A030933 (b-file synthesized from sequence entry)
1 1
2 2
3 6
4 25
5 129
6 777
7 5442
8 43543
9 391895
10 3918955
11 43108507
12 517302088
13 6724927152
14 94148980136
15 1412234702043
16 22595755232690
17 384127838955741
18 6914301101203342
19 131371720922863503
20 2627434418457270066