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 | 81 |
| 2 | 6889 |
| 3 | 88804 |
| 4 | 1898884 |
| 5 | 78818884 |
| 6 | 878588881 |
| 7 | 88888055881 |
| 8 | 388888184881 |
| 9 | 86888087818884 |
| 10 | 788088668888889 |
| 11 | 8858888198858889 |
| 12 | 108818889888588889 |
| 13 | 18848488888038898881 |
| 14 | 868968788888888880481 |
| 15 | 3888888880378818878884 |
| 16 | 22886882888858888885881 |