n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 25 |
3 | 101 |
4 | 361 |
5 | 1205 |
6 | 3865 |
7 | 12101 |
8 | 37321 |
9 | 114005 |
10 | 346105 |
11 | 1046501 |
12 | 3155881 |
13 | 9500405 |
14 | 28566745 |
15 | 85831301 |
16 | 257756041 |
17 | 773792405 |
18 | 2322425785 |
19 | 6969374501 |
20 | 20912317801 |
21 | 62745342005 |
22 | 188252803225 |
23 | 564791964101 |
24 | 1694443001161 |
25 | 5083463221205 |
26 | 15250658099065 |
[1,5,25,101,361,1205,3865,12101,37321,114005, 346105,1046501,3155881,9500405,28566745,85831301, 257756041,773792405,2322425785,6969374501, 20912317801,62745342005,188252803225,564791964101, 1694443001161,5083463221205,15250658099065] |