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 | 4 |
| 2 | 6 |
| 3 | 9 |
| 4 | 10 |
| 5 | 15 |
| 6 | 33 |
| 7 | 46 |
| 8 | 49 |
| 9 | 55 |
| 10 | 58 |
| 11 | 65 |
| 12 | 69 |
| 13 | 94 |
| 14 | 469 |
| 15 | 649 |
| 16 | 694 |
| 17 | 4087 |
| 18 | 4105 |