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 | 5 |
| 2 | 13 |
| 3 | 102 |
| 4 | 983 |
| 5 | 9784 |
| 6 | 97786 |
| 7 | 977787 |
| 8 | 9777788 |
| 9 | 97777789 |
| 10 | 977777790 |
| 11 | 9777777791 |