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 | 60 |
| 3 | 3600 |
| 4 | 86400 |
| 5 | 604800 |
| 6 | 2629800 |
| 7 | 31557600 |
| 8 | 315576000 |
| 9 | 3155760000 |
| 10 | 31557600000 |
| 11 | 31557600000000000 |