# A148884 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 8
4 30
5 97
6 389
7 1441
8 5889
9 23616
10 99002
11 413417
12 1776811
13 7615131
14 33341337
15 145808687
16 647319019
17 2875484141
18 12912706883
19 58054041349
20 263234386877
21 1194949733310
22 5462241787614
23 24996707232914
24 115041699718214
25 530075704218794
26 2453825498716578
27 11372606980198438
28 52914248724872906