# A149757 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 17
4 85
5 343
6 1715
7 7501
8 37505
9 171085
10 855425
11 3999601
12 19998005
13 94992091
14 474960455
15 2280616019
16 11403080095
17 55180159045
18 275900795225
19 1342819665229
20 6714098326145
21 32822357011259
22 164111785056295
23 805053179115385
24 4025265895576925
25 19800669173042077
26 99003345865210385