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 | 89 |
| 2 | 6689 |
| 3 | 6869 |
| 4 | 6899 |
| 5 | 8669 |
| 6 | 8689 |
| 7 | 8699 |
| 8 | 8969 |
| 9 | 8999 |
| 10 | 9689 |
| 11 | 66889 |
| 12 | 68669 |
| 13 | 68699 |
| 14 | 68899 |
| 15 | 69899 |
| 16 | 86689 |
| 17 | 86869 |
| 18 | 86969 |
| 19 | 88969 |
| 20 | 89669 |
| 21 | 89689 |
| 22 | 89899 |
| 23 | 89989 |
| 24 | 96989 |
| 25 | 98669 |
| 26 | 98689 |
| 27 | 98869 |
| 28 | 98899 |
| 29 | 98999 |
| 30 | 99689 |
| 31 | 99989 |
| 32 | 666889 |
| 33 | 666989 |
| 34 | 668699 |
| 35 | 668869 |
| 36 | 668989 |
| 37 | 668999 |
| 38 | 669689 |
| 39 | 669869 |