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 | 0 |
| 2 | 1 |
| 3 | 4 |
| 4 | 9 |
| 5 | 169 |
| 6 | 676 |
| 7 | 21025 |
| 8 | 24649 |
| 9 | 28561 |
| 10 | 32041 |
| 11 | 32761 |
| 12 | 84100 |
| 13 | 85264 |
| 14 | 91204 |
| 15 | 373321 |
| 16 | 2989441 |
| 17 | 3045025 |
| 18 | 3179089 |
| 19 | 3553225 |
| 20 | 4165681 |
| 21 | 11957764 |
| 22 | 13060996 |
| 23 | 14409616 |
| 24 | 430023169 |
| 25 | 436016161 |
| 26 | 442050625 |
| 27 | 448126561 |
| 28 | 505215529 |