# A148687 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 7
4 22
5 67
6 228
7 775
8 2787
9 10126
10 37764
11 143329
12 550368
13 2149095
14 8453575
15 33691399
16 135090849
17 547090691
18 2227753448
19 9139576254
20 37693231937
21 156318494839
22 651542940226
23 2727163759562
24 11468106477863
25 48390347257167
26 205025987747295
27 871248671621395
28 3715469560288270