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 | 8 |
| 2 | 16 |
| 3 | 48 |
| 4 | 192 |
| 5 | 960 |
| 6 | 5760 |
| 7 | 40320 |
| 8 | 322560 |
| 9 | 2903040 |
| 10 | 29030400 |
| 11 | 319334400 |
| 12 | 3832012800 |
| 13 | 49816166400 |
| 14 | 697426329600 |
| 15 | 10461394944000 |
| 16 | 167382319104000 |
| 17 | 2845499424768000 |
| 18 | 51218989645824000 |
| 19 | 973160803270656000 |