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 | 0 |
| 2 | 22 |
| 3 | 777 |
| 4 | 4444 |
| 5 | 303300 |
| 6 | 333333 |
| 7 | 555555 |
| 8 | 588588 |
| 9 | 666666 |
| 10 | 888688 |
| 11 | 2032230 |
| 12 | 5055555 |
| 13 | 5858558 |
| 14 | 6568588 |
| 15 | 6868288 |
| 16 | 7339393 |
| 17 | 8282088 |
| 18 | 10213223 |
| 19 | 10311233 |
| 20 | 10313314 |
| 21 | 10313315 |
| 22 | 10313316 |
| 23 | 10313317 |
| 24 | 10313318 |
| 25 | 10313319 |
| 26 | 20002200 |
| 27 | 21322314 |
| 28 | 21322315 |
| 29 | 21322316 |
| 30 | 21322317 |
| 31 | 21322318 |