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 | 2 |
| 3 | 6 |
| 4 | 8 |
| 5 | 48 |
| 6 | 24 |
| 7 | 216 |
| 8 | 120 |
| 9 | 240 |
| 10 | 128 |
| 11 | 2544 |
| 12 | 336 |
| 13 | 11520 |
| 14 | 3168 |
| 15 | 1536 |
| 16 | 480 |
| 17 | 23616 |
| 18 | 2592 |