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 | 120 |
| 5 | 96 |
| 6 | 180 |
| 7 | 432 |
| 8 | 744 |
| 9 | 720 |
| 10 | 864 |
| 11 | 840 |
| 12 | 1200 |
| 13 | 1260 |
| 14 | 1680 |
| 15 | 2520 |
| 16 | 1728 |
| 17 | 2784 |
| 18 | 2880 |
| 19 | 3744 |
| 20 | 4032 |
| 21 | 5040 |
| 22 | 2592 |
| 23 | 4224 |
| 24 | 5040 |
| 25 | 5760 |
| 26 | 11520 |
| 27 | 11880 |
| 28 | 9216 |
| 29 | 18000 |
| 30 | 20160 |
| 31 | 17280 |
| 32 | 12480 |
| 33 | 17280 |
| 34 | 20160 |
| 35 | 28080 |
| 36 | 20160 |
| 37 | 23040 |
| 38 | 21600 |
| 39 | 32256 |
| 40 | 30240 |
| 41 | 52080 |
| 42 | 34560 |
| 43 | 57600 |