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 | 15 |
| 3 | 24 |
| 4 | 225 |
| 5 | 48 |
| 6 | 360 |
| 7 | 80 |
| 8 | 3375 |
| 9 | 576 |
| 10 | 720 |
| 11 | 168 |
| 12 | 5400 |
| 13 | 224 |
| 14 | 1200 |
| 15 | 1152 |
| 16 | 50625 |
| 17 | 360 |
| 18 | 8640 |
| 19 | 440 |
| 20 | 10800 |
| 21 | 1920 |
| 22 | 2520 |
| 23 | 624 |
| 24 | 81000 |
| 25 | 2304 |
| 26 | 3360 |
| 27 | 13824 |
| 28 | 18000 |
| 29 | 960 |
| 30 | 17280 |
| 31 | 1088 |
| 32 | 759375 |
| 33 | 4032 |
| 34 | 5400 |
| 35 | 3840 |
| 36 | 129600 |
| 37 | 1520 |
| 38 | 6600 |
| 39 | 5376 |
| 40 | 162000 |
| 41 | 1848 |
| 42 | 28800 |