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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 59 |
| 4 | 871 |
| 5 | 325249 |
| 6 | 35797 |
| 7 | 24362249 |
| 8 | 342232522657 |
| 9 | 8224154352439 |
| 10 | 23157229065769 |
| 11 | 9926476934520521 |
| 12 | 37638416003805990839 |
| 13 | 296699416391356495667713 |
| 14 | 691054566545631371393 |