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 | 2146689 |
| 2 | 6751269 |
| 3 | 50243409 |
| 4 | 82312875 |
| 5 | 165469149 |
| 6 | 170953875 |
| 7 | 176558481 |
| 8 | 549353259 |
| 9 | 1929781125 |
| 10 | 3314613771 |
| 11 | 5079577959 |
| 12 | 5630252139 |
| 13 | 6219352719 |
| 14 | 6591796875 |
| 15 | 7245075375 |
| 16 | 10289109375 |
| 17 | 11993263569 |
| 18 | 14084823375 |
| 19 | 14724139851 |