# A148387 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 5
4 16
5 51
6 169
7 580
8 2097
9 7714
10 28843
11 110016
12 426442
13 1670664
14 6607389
15 26445339
16 106744587
17 433688136
18 1773688338
19 7306501045
20 30264788185
21 125931363266
22 526553987611
23 2212172286388
24 9330058593341
25 39485849417577
26 167720037975233
27 714836827043956
28 3055565449129670