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 | 8 |
| 3 | 128 |
| 4 | 216 |
| 5 | 3456 |
| 6 | 27000 |
| 7 | 279936 |
| 8 | 432000 |
| 9 | 9261000 |
| 10 | 34992000 |
| 11 | 148176000 |
| 12 | 8957952000 |
| 13 | 12002256000 |
| 14 | 197222256000 |
| 15 | 3072577536000 |
| 16 | 7501410000000 |
| 17 | 15975002736000 |
| 18 | 433297296432000 |
| 19 | 1920360960000000 |
| 20 | 4089600700416000 |
| 21 | 9984376710000000 |
| 22 | 35097081010992000 |
| 23 | 2128789617370416000 |