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 | 11 |
| 3 | 661 |
| 4 | 6661 |
| 5 | 11161 |
| 6 | 111611 |
| 7 | 1111661 |
| 8 | 11111161 |
| 9 | 111616111 |
| 10 | 1111161661 |
| 11 | 11111111611 |
| 12 | 111111111611 |
| 13 | 1111111111661 |
| 14 | 11111111616611 |
| 15 | 111111111116111 |
| 16 | 1111111111616161 |
| 17 | 11111111111611661 |
| 18 | 111111111111111161 |