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 | 114 |
| 3 | 472 |
| 4 | 86520 |
| 5 | 397603 |
| 6 | 514911 |
| 7 | 5123504 |
| 8 | 382611481 |
| 9 | 1166422075 |
| 10 | 24846586495 |
| 11 | 62401902289 |
| 12 | 344065155571 |