# A129578 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 5
4 16
5 62
6 275
7 1350
8 7204
9 41345
10 253319
11 1647434
12 11318410
13 81820186
14 620213998
15 4915135856
16 40617213320
17 349192774319
18 3116811173348
19 28830194370470
20 275902967857298
21 2727619197322857
22 27818539432598746