# A052974 (b-file synthesized from sequence entry)
0 1
1 0
2 1
3 3
4 5
5 14
6 34
7 81
8 200
9 487
10 1187
11 2899
12 7072
13 17256
14 42109
15 102748
16 250717
17 611779
18 1492805
19 3642610
20 8888370
21 21688597
22 52922564
23 129136875
24 315108171
25 768898587
26 1876197092
27 4578127192
28 11171133721
29 27258794552
30 66514455833