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 | 81 |
| 2 | 6561 |
| 3 | 531143 |
| 4 | 43046713 |
| 5 | 3486751263 |
| 6 | 282429513233 |
| 7 | 22876783667859 |
| 8 | 1853020148203325 |