# A148740 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 7
4 26
5 80
6 281
7 1034
8 3863
9 14359
10 56201
11 220169
12 867848
13 3468563
14 14062361
15 56988945
16 232761521
17 959409340
18 3966388741
19 16441169270
20 68597731189
21 287170234058
22 1204285077722
23 5069469935803
24 21411515059711
25 90571173808255
26 384000396915723
27 1632464114260582
28 6950938443428007