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 | 19 |
| 2 | 29 |
| 3 | 109 |
| 4 | 229 |
| 5 | 409 |
| 6 | 709 |
| 7 | 829 |
| 8 | 1009 |
| 9 | 1069 |
| 10 | 1129 |
| 11 | 1489 |
| 12 | 1669 |
| 13 | 1789 |
| 14 | 2269 |
| 15 | 2389 |
| 16 | 2689 |
| 17 | 3109 |
| 18 | 3169 |
| 19 | 3469 |
| 20 | 3529 |
| 21 | 3889 |
| 22 | 4789 |
| 23 | 4909 |
| 24 | 5209 |
| 25 | 5569 |
| 26 | 5689 |
| 27 | 5869 |
| 28 | 6469 |
| 29 | 6529 |
| 30 | 6829 |
| 31 | 8089 |
| 32 | 8209 |
| 33 | 8269 |
| 34 | 8389 |
| 35 | 8629 |
| 36 | 9109 |
| 37 | 9769 |
| 38 | 9829 |
| 39 | 10909 |
| 40 | 12289 |
| 41 | 12589 |
| 42 | 12829 |
| 43 | 12889 |
| 44 | 13009 |
| 45 | 13669 |
| 46 | 13729 |
| 47 | 14389 |