This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 4 |
| 3 | 9 |
| 4 | 1 |
| 5 | 121 |
| 6 | 441 |
| 7 | 961 |
| 8 | 4 |
| 9 | 144 |
| 10 | 484 |
| 11 | 9 |
| 12 | 169 |
| 13 | 1 |
| 14 | 10201 |
| 15 | 40401 |
| 16 | 90601 |
| 17 | 121 |
| 18 | 12321 |
| 19 | 44521 |
| 20 | 96721 |
| 21 | 441 |
| 22 | 14641 |
| 23 | 48841 |
| 24 | 961 |
| 25 | 4 |
| 26 | 10404 |
| 27 | 40804 |
| 28 | 144 |
| 29 | 12544 |
| 30 | 44944 |
| 31 | 484 |
| 32 | 14884 |
| 33 | 9 |
| 34 | 10609 |
| 35 | 169 |
| 36 | 12769 |
| 37 | 1 |
| 38 | 1002001 |
| 39 | 4004001 |
| 40 | 9006001 |
| 41 | 10201 |
| 42 | 1212201 |
| 43 | 4414201 |
| 44 | 9616201 |
| 45 | 40401 |