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 | 1375298099 |
| 2 | 1419138368 |
| 3 | 2370099168 |
| 4 | 5839897526 |
| 5 | 16681039431 |
| 6 | 27326512069 |
| 7 | 28461637018 |
| 8 | 34090335168 |
| 9 | 44009539168 |
| 10 | 45412427776 |
| 11 | 47166830151 |
| 12 | 57788232400 |
| 13 | 75843173376 |
| 14 | 89516861675 |
| 15 | 89636142881 |
| 16 | 140201053499 |
| 17 | 186876720832 |
| 18 | 191701358025 |
| 19 | 209797492893 |
| 20 | 220333644849 |