n | a(n) |
---|---|
1 | 4 |
2 | 9 |
3 | 64 |
4 | -1 |
5 | 144 |
6 | 625 |
7 | 324 |
8 | 2601 |
9 | -1 |
10 | 154449 |
11 | 260100 |
12 | 1681 |
13 | 898704 |
14 | 27225 |
15 | 114244 |
16 | -1 |
17 | 278784 |
18 | 223729 |
19 | 4410000 |
20 | 25281 |
21 | 12888100 |
22 | 4730625 |
23 | 1512900 |
24 | 4774225 |
25 | -1 |
26 | 8208225 |
27 | 6130576 |
28 | 1121481 |
29 | 12744900 |
30 | 34586161 |
31 | 2433600 |
32 | 45360225 |
33 | 9784384 |
34 | 1271279025 |
35 | 64064016 |
36 | -1 |
37 | 69956496 |
[4,9,64,-1,144,625,324,2601,-1,154449,260100,1681, 898704,27225,114244,-1,278784,223729,4410000, 25281,12888100,4730625,1512900,4774225,-1,8208225, 6130576,1121481,12744900,34586161,2433600, 45360225,9784384,1271279025,64064016,-1,69956496] |