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 | 6 |
| 2 | 66 |
| 3 | 666 |
| 4 | 476776 |
| 5 | 764466 |
| 6 | 4646676 |
| 7 | 464774774646 |
| 8 | 667474767766464747666467446 |
| 9 | 7666777767444444644744476476 |
| 10 | 44774674766666676747766477446 |