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 | 44449 |
| 2 | 404449 |
| 3 | 440441 |
| 4 | 440443 |
| 5 | 441443 |
| 6 | 441449 |
| 7 | 442447 |
| 8 | 444043 |
| 9 | 444047 |
| 10 | 444341 |
| 11 | 444343 |
| 12 | 444347 |
| 13 | 444349 |
| 14 | 444401 |
| 15 | 444403 |
| 16 | 444421 |
| 17 | 444461 |
| 18 | 444463 |
| 19 | 444469 |
| 20 | 444473 |
| 21 | 444487 |
| 22 | 444547 |
| 23 | 444641 |
| 24 | 444649 |
| 25 | 444841 |
| 26 | 445447 |
| 27 | 446441 |
| 28 | 446447 |
| 29 | 447443 |
| 30 | 447449 |
| 31 | 449441 |