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 | 6561 |
| 1 | 815730721 |
| 2 | 78310985281 |
| 3 | 1406408618241 |
| 4 | 11688200277601 |
| 5 | 62259690411361 |
| 6 | 248155780267521 |
| 7 | 806460091894081 |
| 8 | 2252292232139041 |
| 9 | 5595818096650401 |
| 10 | 12667700813876161 |
| 11 | 26584441929064321 |
| 12 | 52389094428262881 |