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 | 24 |
| 3 | 30 |
| 4 | 90 |
| 5 | 96 |
| 6 | 342 |
| 7 | 744 |
| 8 | 812160 |
| 9 | 330 |
| 10 | 147258 |
| 11 | 32784 |
| 12 | 3314062080 |
| 13 | 25896 |
| 14 | 565632 |
| 15 | 116412 |
| 16 | 210317184 |
| 17 | 145176 |
| 18 | 6182491392 |
| 19 | 963108 |