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 | 111111111111 |
| 2 | 1011111111111 |
| 3 | 1101111111111 |
| 4 | 1110111111111 |
| 5 | 1111011111111 |
| 6 | 1111101111111 |
| 7 | 1111110111111 |
| 8 | 1111111011111 |
| 9 | 1111111101111 |
| 10 | 1111111110111 |
| 11 | 1111111111011 |
| 12 | 1111111111101 |
| 13 | 1111111111110 |
| 14 | 10011111111111 |
| 15 | 10101111111111 |
| 16 | 10110111111111 |
| 17 | 10111011111111 |
| 18 | 10111101111111 |