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 | 1429 |
| 2 | 6563 |
| 3 | 1458601 |
| 4 | 55981069 |
| 5 | 250844317 |
| 6 | 4926746609 |
| 7 | 225578509837 |
| 8 | 1118584849397 |
| 9 | 4143277702703 |