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 | 3 |
| 2 | 81 |
| 3 | 12534 |
| 4 | 12584703 |
| 5 | 86510224720 |
| 6 | 4019515127529418 |
| 7 | 1256433426475190769775 |
| 8 | 2643803004141585682944365943 |