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 | 1 |
| 1 | 11 |
| 2 | 101 |
| 3 | 1101 |
| 4 | 10001 |
| 5 | 111001 |
| 6 | 1000001 |
| 7 | 11010001 |
| 8 | 101000001 |
| 9 | 1100100001 |
| 10 | 10000000001 |
| 11 | 111101000001 |
| 12 | 1000000000001 |
| 13 | 11000010000001 |
| 14 | 101010000000001 |
| 15 | 1101000100000001 |
| 16 | 10000000000000001 |
| 17 | 111001001000000001 |