# A047761 (b-file synthesized from sequence entry)
0 0
1 1
2 1
3 3
4 5
5 12
6 23
7 55
8 114
9 273
10 588
11 1428
12 3156
13 7752
14 17427
15 43263
16 98516
17 246675
18 567281
19 1430715
20 3316521
21 8414640
22 19633796
23 50067108
24 117464424
25 300830572
26 709098696
27 1822766520
28 4313876888
29 11124755664
30 26421284043