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 | 5 |
| 2 | 11 |
| 3 | 281 |
| 4 | 15461 |
| 5 | 1194748781 |
| 6 | 636653 |
| 7 | 41 |
| 8 | 101 |
| 9 | 4007847353 |
| 10 | 71544139714543458911 |
| 11 | 13553 |