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 | 2 |
| 2 | 3 |
| 3 | 10 |
| 4 | 85 |
| 5 | 6297 |
| 6 | 105324757 |
| 7 | 10291333539500676 |
| 8 | 72129634294824118806681649563665 |
| 9 | 3614136206345221874912341551952565198060297016360952863886217259 |