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) |
|---|---|
| 2 | 2 |
| 3 | 24 |
| 4 | 48 |
| 5 | 240 |
| 6 | 1440 |
| 7 | 2400 |
| 8 | 7440 |
| 9 | 25920 |
| 10 | 72000 |
| 11 | 234000 |