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 | 100 |
| 3 | 101 |
| 4 | 11000 |
| 5 | 11001 |
| 6 | 11010 |
| 7 | 11011 |
| 8 | 1110000 |
| 9 | 1110001 |
| 10 | 1110010 |
| 11 | 1110011 |
| 12 | 1110100 |
| 13 | 1110101 |
| 14 | 1110110 |
| 15 | 1110111 |
| 16 | 111100000 |
| 17 | 111100001 |
| 18 | 111100010 |
| 19 | 111100011 |
| 20 | 111100100 |
| 21 | 111100101 |
| 22 | 111100110 |
| 23 | 111100111 |
| 24 | 111101000 |
| 25 | 111101001 |
| 26 | 111101010 |
| 27 | 111101011 |
| 28 | 111101100 |
| 29 | 111101101 |
| 30 | 111101110 |