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 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 5 |
| 7 | 6 |
| 8 | 7 |
| 9 | 8 |
| 10 | 9 |
| 11 | 199 |
| 12 | 919 |
| 13 | 991 |
| 14 | 1188 |
| 15 | 1818 |
| 16 | 1881 |
| 17 | 2999 |
| 18 | 8118 |
| 19 | 8181 |
| 20 | 8811 |
| 21 | 9299 |
| 22 | 9929 |
| 23 | 9992 |
| 24 | 11177 |
| 25 | 11444 |
| 26 | 11717 |
| 27 | 11771 |
| 28 | 13333 |
| 29 | 14144 |
| 30 | 14414 |
| 31 | 14441 |
| 32 | 17117 |
| 33 | 17171 |
| 34 | 17711 |
| 35 | 22888 |
| 36 | 26666 |
| 37 | 28288 |
| 38 | 28828 |
| 39 | 28882 |
| 40 | 31333 |
| 41 | 33133 |
| 42 | 33313 |
| 43 | 33331 |
| 44 | 39999 |
| 45 | 41144 |