# A149741 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 17
4 77
5 313
6 1461
7 6377
8 30137
9 136451
10 651723
11 3016195
12 14502915
13 68098479
14 329177579
15 1561522961
16 7577800745
17 36219905503
18 176326651911
19 847707006233
20 4137311253217
21 19982038766867
22 97730494112419
23 473764845562387
24 2321246109231415
25 11287039830147797
26 55385325458438225
27 269998907629235517