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 | 2 |
| 3 | 2947253997913233984847871999999 |
| 4 | 29 |
| 5 | 23 |
| 6 | 19 |
| 7 | 719 |
| 8 | 4989599 |
| 9 | 39520825343999 |
| 10 | 11 |
| 11 | 11058645491711999 |
| 12 | 419 |
| 13 | 479001599 |
| 14 | 359 |
| 15 | 7 |
| 16 | 860234568201646565394748723848806399999999 |