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) |
|---|---|
| 0 | 10 |
| 1 | 111000 |
| 2 | 1110011000 |
| 3 | 1111100000 |
| 4 | 11100110011000 |
| 5 | 11100111100000 |
| 6 | 11111110000000 |
| 7 | 11111000011000 |
| 8 | 11111001100000 |
| 9 | 111001100110011000 |
| 10 | 111001100111100000 |
| 11 | 111001111110000000 |
| 12 | 111001111000011000 |