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 | 1 |
| 3 | 4 |
| 4 | 1 |
| 5 | 24 |
| 6 | 48 |
| 7 | 1 |
| 8 | 160 |
| 9 | 1152 |
| 10 | 1536 |
| 11 | 1 |
| 12 | 1440 |
| 13 | 30720 |
| 14 | 122880 |
| 15 | 122880 |
| 16 | 1 |
| 17 | 18304 |
| 18 | 1152000 |
| 19 | 10813440 |
| 20 | 29491200 |
| 21 | 23592960 |
| 22 | 1 |
| 23 | 330624 |
| 24 | 65630208 |
| 25 | 1348730880 |
| 26 | 7707033600 |
| 27 | 15854469120 |
| 28 | 10569646080 |
| 29 | 1 |
| 30 | 8488960 |
| 31 | 5858721792 |
| 32 | 261070258176 |
| 33 | 2853804441600 |
| 34 | 11499774935040 |
| 35 | 18940805775360 |
| 36 | 10823317585920 |