# A148111 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 4
4 10
5 29
6 81
7 254
8 808
9 2662
10 9199
11 31691
12 113292
13 411434
14 1508096
15 5655391
16 21312822
17 81456715
18 315068989
19 1224636405
20 4817113618
21 19064234579
22 75937817010
23 304996020184
24 1230021324817
25 4993203500709
26 20378945659090
27 83498766348274
28 344019854358410
29 1422622942166198
30 5906293065080430