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 | 2146687 |
| 2 | 6751267 |
| 3 | 50243407 |
| 4 | 82312873 |
| 5 | 165469147 |
| 6 | 170953873 |
| 7 | 176558479 |
| 8 | 549353257 |
| 9 | 1929781123 |
| 10 | 3314613769 |
| 11 | 5079577957 |
| 12 | 5630252137 |
| 13 | 6219352717 |
| 14 | 6591796873 |
| 15 | 7245075373 |
| 16 | 10289109373 |
| 17 | 11993263567 |
| 18 | 14084823373 |
| 19 | 14724139849 |
| 20 | 17474794873 |
| 21 | 19880486827 |
| 22 | 21230922607 |
| 23 | 30988732219 |