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 | 9 |
| 2 | 25 |
| 3 | 121 |
| 4 | 289 |
| 5 | 961 |
| 6 | 1681 |
| 7 | 3481 |
| 8 | 4489 |
| 9 | 6889 |
| 10 | 11881 |
| 11 | 16129 |
| 12 | 24649 |
| 13 | 32041 |
| 14 | 36481 |
| 15 | 44521 |
| 16 | 58081 |
| 17 | 76729 |
| 18 | 80089 |
| 19 | 109561 |
| 20 | 124609 |
| 21 | 134689 |
| 22 | 160801 |
| 23 | 185761 |
| 24 | 212521 |
| 25 | 259081 |
| 26 | 299209 |
| 27 | 316969 |
| 28 | 344569 |
| 29 | 358801 |
| 30 | 380689 |
| 31 | 502681 |
| 32 | 546121 |
| 33 | 597529 |
| 34 | 635209 |