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 | 1 |
| 2 | 10 |
| 3 | 111 |
| 4 | 1100 |
| 5 | 11101 |
| 6 | 111110 |
| 7 | 1111011 |
| 8 | 11111000 |
| 9 | 111111001 |
| 10 | 1111111010 |
| 11 | 11111111111 |
| 12 | 111111110100 |
| 13 | 1111111110101 |
| 14 | 11111111110110 |
| 15 | 111111111110011 |
| 16 | 1111111111110000 |
| 17 | 11111111111110001 |
| 18 | 111111111111110010 |