# A148928 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 9
4 27
5 97
6 343
7 1257
8 4838
9 18667
10 73563
11 296072
12 1196444
13 4906843
14 20317977
15 84581199
16 355455832
17 1502010343
18 6379990024
19 27262864080
20 116966557176
21 503988871237
22 2180480955718
23 9464214424929
24 41218477076464
25 180054523886628
26 788636805693075
27 3463448527252381
28 15246364612110953