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 | 17 |
| 3 | 2873 |
| 4 | 10081 |
| 5 | 3345113 |
| 6 | 420048673 |
| 7 | 449349533 |
| 8 | 2961432773 |
| 9 | 19723772249 |
| 10 | 821451792317 |
| 11 | 1207046362769 |