# A196559 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 12
4 65
5 384
6 2197
7 14078
8 94739
9 670612
10 4899280
11 36645899
12 281037158
13 2197679518
14 17489660228
15 141241307806
16 1155345218645
17 9559672712389
18 79905432682918
19 674005489358155
20 5731854529045978
21 49105864505432392
22 423531623342726441