# A149744 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 17
4 79
5 299
6 1435
7 6015
8 28977
9 127111
10 615779
11 2781585
12 13528281
13 62333163
14 304059931
15 1420849033
16 6947386979
17 32805454397
18 160719098405
19 765023055849
20 3754056222261
21 17982361242179
22 88362997996283
23 425418683915779
24 2092924334272323
25 10118080587391413
26 49828855224311489
27 241722588853373269