n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 9 |
4 | 25 |
5 | 81 |
6 | 289 |
7 | 961 |
8 | 3249 |
9 | 11025 |
10 | 37249 |
11 | 126025 |
12 | 426409 |
13 | 1442401 |
14 | 4879681 |
15 | 16507969 |
16 | 55845729 |
17 | 188925025 |
18 | 639128961 |
19 | 2162157001 |
20 | 7314525625 |
21 | 24744863025 |
22 | 83711270241 |
23 | 283193201281 |
24 | 958035736849 |
25 | 3241011678961 |
[1,1,1,9,25,81,289,961,3249,11025,37249,126025, 426409,1442401,4879681,16507969,55845729, 188925025,639128961,2162157001,7314525625, 24744863025,83711270241,283193201281,958035736849, 3241011678961] |