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) |
|---|---|
| 0 | 8 |
| 1 | 24 |
| 2 | 7680 |
| 3 | 64 |
| 4 | 3715891200 |
| 5 | 194641920 |
| 6 | 1428329123020800 |
| 7 | 160 |
| 8 | 1678343852714360832000 |
| 9 | 637770664031457116160000 |
| 10 | 4714400748520531002654720000 |
| 11 | 2602349213183333113465405440000 |
| 12 | 27064431817106664380040216576000000 |