# A149135 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 9
4 34
5 114
6 406
7 1503
8 5592
9 21416
10 83928
11 327244
12 1301822
13 5202586
14 20956424
15 85286483
16 347725526
17 1426195886
18 5880016708
19 24319110834
20 101086632952
21 421341186950
22 1760919637296
23 7383805810480
24 31031856064342
25 130759597487428
26 552246295418526
27 2336493297695446
28 9905532551587586