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 | 111111 |
| 2 | 1011111 |
| 3 | 1101111 |
| 4 | 1110111 |
| 5 | 1111011 |
| 6 | 1111101 |
| 7 | 1111110 |
| 8 | 10011111 |
| 9 | 10101111 |
| 10 | 10110111 |
| 11 | 10111011 |
| 12 | 10111101 |
| 13 | 10111110 |
| 14 | 11001111 |
| 15 | 11010111 |
| 16 | 11011011 |
| 17 | 11011101 |
| 18 | 11011110 |
| 19 | 11100111 |
| 20 | 11101011 |
| 21 | 11101101 |
| 22 | 11101110 |
| 23 | 11110011 |
| 24 | 11110101 |
| 25 | 11110110 |
| 26 | 11111001 |
| 27 | 11111010 |