# A148819 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 8
4 26
5 92
6 311
7 1161
8 4418
9 16770
10 66734
11 264292
12 1066008
13 4380303
14 17942834
15 74820454
16 313808725
17 1319581995
18 5616581050
19 23932844268
20 102589135624
21 442708044443
22 1912059874482
23 8310231577525
24 36231490886389
25 158281403031522
26 694917637204853
27 3055506420550141
28 13473895432254104