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 | 7 |
| 3 | 57 |
| 4 | 3391 |
| 5 | 10010183 |
| 6 | 588972486242552 |
| 7 | 961457184347597076119863109462 |
| 8 | 2244227167765735741796211572067153905745156229769919746729015 |