# A148435 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 5
4 19
5 65
6 270
7 1032
8 4492
9 18450
10 83108
11 357568
12 1646051
13 7303719
14 34129741
15 154802470
16 731344818
17 3371564716
18 16060636232
19 74963498719
20 359385701046
21 1693717865991
22 8161243408923
23 38758956077611
24 187529238721081
25 896154414305721
26 4350539897658050
27 20896387246603047
28 101730283552601952