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 | 11 |
| 2 | 44 |
| 3 | 99 |
| 4 | 1166 |
| 5 | 2255 |
| 6 | 3366 |
| 7 | 4499 |
| 8 | 6644 |
| 9 | 8811 |
| 10 | 110000 |
| 11 | 112211 |
| 12 | 114444 |
| 13 | 116699 |
| 14 | 119966 |
| 15 | 222255 |
| 16 | 225566 |
| 17 | 228899 |
| 18 | 332244 |
| 19 | 336611 |
| 20 | 440000 |
| 21 | 444411 |
| 22 | 448844 |
| 23 | 552299 |
| 24 | 557766 |
| 25 | 662255 |
| 26 | 667766 |
| 27 | 772299 |
| 28 | 778844 |
| 29 | 884411 |
| 30 | 990000 |
| 31 | 996611 |
| 32 | 11002244 |
| 33 | 11008899 |
| 34 | 11115566 |