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 | 6 |
| 3 | 66 |
| 4 | 698 |
| 5 | 6833 |
| 6 | 66965 |
| 7 | 667080 |
| 8 | 6667198 |
| 9 | 66667327 |
| 10 | 666667454 |
| 11 | 6666667590 |