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 | 97 |
| 2 | 911 |
| 3 | 977 |
| 4 | 97777 |
| 5 | 911111 |
| 6 | 97777777777777777777 |
| 7 | 911111111111111111111 |
| 8 | 97777777777777777777777777777 |
| 9 | 911111111111111111111111111111111111111111 |