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 | 380 |
| 3 | 34442 |
| 4 | 3328979 |
| 5 | 319902496 |
| 6 | 30809397399 |
| 7 | 2965468376203 |
| 8 | 285477006510014 |
| 9 | 27481270649615774 |