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 | 4 |
| 2 | 9 |
| 3 | 25 |
| 4 | 49 |
| 5 | 121 |
| 6 | 169 |
| 7 | 361 |
| 8 | 529 |
| 9 | 961 |
| 10 | 12769 |
| 11 | 16129 |
| 12 | 18769 |
| 13 | 32761 |
| 14 | 72361 |
| 15 | 76729 |
| 16 | 78961 |
| 17 | 96721 |
| 18 | 212521 |
| 19 | 214369 |
| 20 | 436921 |
| 21 | 452929 |
| 22 | 458329 |
| 23 | 1038361 |
| 24 | 1630729 |
| 25 | 1852321 |
| 26 | 3892729 |
| 27 | 5230369 |
| 28 | 5470921 |
| 29 | 5650129 |
| 30 | 5812921 |
| 31 | 5870929 |
| 32 | 7230721 |