# A148325 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 5
4 14
5 41
6 137
7 459
8 1653
9 6053
10 22929
11 88744
12 350239
13 1405126
14 5726560
15 23602997
16 98536165
17 415093134
18 1765463633
19 7569222711
20 32689073839
21 142148086350
22 621856360143
23 2735876852080
24 12099489262898
25 53762825236136
26 239965710327795
27 1075431184473066
28 4838203611554393