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 | 8 |
| 4 | 1 |
| 5 | 360 |
| 6 | 480 |
| 7 | 180 |
| 8 | 24 |
| 9 | 1 |
| 10 | 20160 |
| 11 | 40320 |
| 12 | 25200 |
| 13 | 6720 |
| 14 | 840 |
| 15 | 48 |
| 16 | 1 |
| 17 | 1814400 |
| 18 | 4838400 |
| 19 | 4233600 |
| 20 | 1693440 |
| 21 | 352800 |
| 22 | 40320 |
| 23 | 2520 |
| 24 | 80 |
| 25 | 1 |
| 26 | 239500800 |
| 27 | 798336000 |
| 28 | 898128000 |
| 29 | 479001600 |
| 30 | 139708800 |
| 31 | 23950080 |
| 32 | 2494800 |
| 33 | 158400 |
| 34 | 5940 |
| 35 | 120 |
| 36 | 1 |