# A148735 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 7
4 25
5 82
6 304
7 1137
8 4419
9 17624
10 71591
11 295945
12 1242057
13 5269407
14 22632264
15 98011100
16 428245235
17 1884755881
18 8349296970
19 37215394774
20 166753657393
21 750936303113
22 3396894245330
23 15429029717504
24 70350785713817
25 321889838514655
26 1477642011814318
27 6803673437466460
28 31415097550714252