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 | 12 |
| 3 | 24 |
| 4 | 72 |
| 5 | 240 |
| 6 | 360 |
| 7 | 1440 |
| 8 | 1440 |
| 9 | 1440 |
| 10 | 8640 |
| 11 | 10080 |
| 12 | 15120 |
| 13 | 34560 |
| 14 | 45360 |
| 15 | 55440 |
| 16 | 60480 |
| 17 | 60480 |
| 18 | 166320 |
| 19 | 181440 |
| 20 | 211680 |
| 21 | 332640 |
| 22 | 332640 |
| 23 | 332640 |
| 24 | 665280 |
| 25 | 665280 |
| 26 | 665280 |
| 27 | 831600 |
| 28 | 907200 |
| 29 | 1663200 |
| 30 | 2494800 |
| 31 | 2661120 |
| 32 | 2661120 |