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 | 4 |
| 2 | 347 |
| 3 | 34163 |
| 4 | 3412143 |
| 5 | 341175325 |
| 6 | 34117055318 |
| 7 | 3411700692939 |
| 8 | 341170025540426 |
| 9 | 34117002022924247 |