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 | 5 |
| 2 | 6 |
| 3 | 7 |
| 4 | 11 |
| 5 | 13 |
| 6 | 17 |
| 7 | 28 |
| 8 | 81 |
| 9 | 87 |
| 10 | 433 |
| 11 | 640 |
| 12 | 647 |
| 13 | 798 |
| 14 | 1026 |
| 15 | 1216 |
| 16 | 1277 |
| 17 | 3825 |
| 18 | 6684 |