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 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 10 |
| 4 | 11 |
| 5 | 101 |
| 6 | 1000 |
| 7 | 1101 |
| 8 | 10101 |
| 9 | 100010 |
| 10 | 110111 |
| 11 | 1011001 |
| 12 | 10010000 |
| 13 | 11101001 |
| 14 | 101111001 |
| 15 | 1001100010 |
| 16 | 1111011011 |
| 17 | 11000111101 |
| 18 | 101000011000 |
| 19 | 1000001010101 |
| 20 | 1101001101101 |
| 21 | 10101011000010 |
| 22 | 100010100101111 |
| 23 | 110111111110001 |
| 24 | 1011010100100000 |
| 25 | 10010010100010001 |