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 | 3 |
| 2 | 8 |
| 3 | 16 |
| 4 | 18 |
| 5 | 30 |
| 6 | 72 |
| 7 | 144 |
| 8 | 168 |
| 9 | 252 |
| 10 | 336 |
| 11 | 420 |
| 12 | 900 |
| 13 | 960 |
| 14 | 1008 |
| 15 | 1080 |
| 16 | 1440 |
| 17 | 2160 |
| 18 | 2880 |
| 19 | 3360 |
| 20 | 6300 |
| 21 | 6720 |
| 22 | 7920 |
| 23 | 9240 |
| 24 | 12600 |
| 25 | 18480 |
| 26 | 30240 |
| 27 | 60480 |
| 28 | 65520 |
| 29 | 98280 |
| 30 | 131040 |
| 31 | 196560 |
| 32 | 262080 |
| 33 | 327600 |
| 34 | 360360 |
| 35 | 589680 |
| 36 | 655200 |
| 37 | 786240 |
| 38 | 831600 |
| 39 | 1108800 |
| 40 | 1330560 |
| 41 | 1663200 |