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 | 2160 |
| 4 | 12600 |
| 5 | 18480 |
| 6 | 77760 |
| 7 | 180180 |
| 8 | 216000 |
| 9 | 453600 |
| 10 | 665280 |
| 11 | 2646000 |
| 12 | 2799360 |
| 13 | 3880800 |
| 14 | 7776000 |
| 15 | 10810800 |
| 16 | 16329600 |
| 17 | 16336320 |
| 18 | 23950080 |
| 19 | 32016600 |
| 20 | 45360000 |
| 21 | 66528000 |
| 22 | 95256000 |
| 23 | 100776960 |
| 24 | 139708800 |
| 25 | 214414200 |
| 26 | 232792560 |
| 27 | 279936000 |
| 28 | 389188800 |
| 29 | 555660000 |
| 30 | 587865600 |