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 | 5 |
| 3 | 43 |
| 4 | 8219 |
| 5 | 36893488147419103363 |
| 6 | 38685626227668133590597803 |
| 7 | 862718293348820473429344482784628181556388621521298319395315527975371 |