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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 4 |
| 5 | 9 |
| 6 | 64 |
| 7 | 25 |
| 8 | 256 |
| 9 | 1225 |
| 10 | 16384 |
| 11 | 3969 |
| 12 | 65536 |
| 13 | 53361 |
| 14 | 1048576 |
| 15 | 184041 |
| 16 | 4194304 |
| 17 | 41409225 |
| 18 | 1073741824 |
| 19 | 147744025 |
| 20 | 4294967296 |
| 21 | 2133423721 |
| 22 | 68719476736 |
| 23 | 7775536041 |
| 24 | 274877906944 |
| 25 | 457028729521 |
| 26 | 17592186044416 |
| 27 | 1690195005625 |
[1,1,1,4,9,64,25,256,1225,16384,3969,65536,53361, 1048576,184041,4194304,41409225,1073741824, 147744025,4294967296,2133423721,68719476736, 7775536041,274877906944,457028729521, 17592186044416,1690195005625] |