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 | 9 |
| 1 | 7 |
| 2 | 45 |
| 3 | 13885 |
| 4 | 214285628 |
| 5 | 141928437783596058 |
| 6 | 34799563546219637107559010387434773 |
| 7 | 2746748689148547334068147992469084900474381603247549175076877182361594 |