# A091712 (b-file synthesized from sequence entry)
0 1
1 2
2 2
3 2
4 3
5 6
6 14
7 36
8 99
9 286
10 858
11 2652
12 8398
13 27132
14 89148
15 297160
16 1002915
17 3421710
18 11785890
19 40940460
20 143291610
21 504932340
22 1790214660
23 6382504440
24 22870640910
25 82334307276
26 297670187844
27 1080432533656
28 3935861372604