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 | 25 |
| 3 | 121 |
| 4 | 289 |
| 5 | 841 |
| 6 | 1369 |
| 7 | 2809 |
| 8 | 4489 |
| 9 | 6889 |
| 10 | 10201 |
| 11 | 16129 |
| 12 | 22201 |
| 13 | 29929 |
| 14 | 38809 |
| 15 | 51529 |
| 16 | 66049 |
| 17 | 85849 |
| 18 | 109561 |
| 19 | 134689 |
| 20 | 160801 |
| 21 | 196249 |
| 22 | 237169 |
| 23 | 292681 |
| 24 | 332929 |
| 25 | 398161 |
| 26 | 458329 |
| 27 | 537289 |
| 28 | 619369 |
| 29 | 727609 |
| 30 | 822649 |
| 31 | 935089 |
| 32 | 1062961 |
| 33 | 1190281 |