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 | 5600 |
| 4 | 480236 |
| 5 | 41586328 |
| 6 | 3437215802 |
| 7 | 268717054875 |
| 8 | 19964011820443 |