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 | 10 |
| 2 | 101 |
| 3 | 1110 |
| 4 | 10011 |
| 5 | 101100 |
| 6 | 110101 |
| 7 | 111110 |
| 8 | 1000111 |
| 9 | 10011000 |
| 10 | 10101001 |
| 11 | 10111010 |
| 12 | 11001011 |
| 13 | 11011100 |
| 14 | 11101101 |
| 15 | 11111110 |
| 16 | 100001111 |
| 17 | 1000110000 |
| 18 | 1001010001 |
| 19 | 1001110010 |
| 20 | 1010010011 |
| 21 | 1010110100 |
| 22 | 1011010101 |
| 23 | 1011110110 |
| 24 | 1100010111 |
| 25 | 1100111000 |
| 26 | 1101011001 |
| 27 | 1101111010 |
| 28 | 1110011011 |
| 29 | 1110111100 |