# A149674 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 17
4 65
5 261
6 1085
7 4555
8 19567
9 84709
10 370249
11 1633547
12 7258227
13 32402035
14 145428535
15 655641593
16 2966918443
17 13471545253
18 61360832927
19 280227228003
20 1282967187347
21 5887316760711
22 27071579408811
23 124715117059779
24 575561899922933
25 2660508922424331
26 12316490711071187
27 57097128209758149