# A141505 (b-file synthesized from sequence entry)
0 1
1 2
2 3
3 9
4 21
5 113
6 469
7 4085
8 28379
9 421721
10 4946881
11 123415785
12 2438547133
13 102642272877
14 3418605422546
15 242398759656743
16 13604569959521965
17 1625856487869820237
18 153782502309772183952
19 30970307573051859177121
20 4936590429632104565792997
21 1675450994355334964940357075