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 | 2 |
| 2 | 29 |
| 3 | 89 |
| 4 | 229 |
| 5 | 829 |
| 6 | 929 |
| 7 | 2999 |
| 8 | 8929 |
| 9 | 8999 |
| 10 | 9829 |
| 11 | 9929 |
| 12 | 22229 |
| 13 | 28229 |
| 14 | 28289 |
| 15 | 29989 |
| 16 | 82889 |
| 17 | 88289 |
| 18 | 89899 |
| 19 | 89989 |
| 20 | 92899 |
| 21 | 98299 |
| 22 | 98899 |
| 23 | 98929 |
| 24 | 98999 |
| 25 | 99289 |
| 26 | 99829 |
| 27 | 99929 |
| 28 | 99989 |
| 29 | 222289 |
| 30 | 228299 |
| 31 | 228829 |
| 32 | 228929 |
| 33 | 228989 |
| 34 | 282229 |
| 35 | 282299 |
| 36 | 282889 |
| 37 | 288929 |
| 38 | 288989 |
| 39 | 289889 |