# A148996 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 9
4 33
5 119
6 454
7 1779
8 7152
9 29311
10 122013
11 514390
12 2192976
13 9435593
14 40927132
15 178767188
16 785677788
17 3471969333
18 15417894851
19 68766083151
20 307921250078
21 1383758689713
22 6238746051177
23 28211698413079
24 127923279261484
25 581519329356110
26 2649655569254817
27 12099042388429222
28 55358244255747829