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 | 1109111 |
| 2 | 110091011 |
| 3 | 111091111 |
| 4 | 10109901101 |
| 5 | 10110911101 |
| 6 | 11000910011 |
| 7 | 11010911011 |
| 8 | 11100910111 |
| 9 | 1010099010101 |
| 10 | 1010109110101 |
| 11 | 1011099011101 |
| 12 | 1100009100011 |
| 13 | 1101009101011 |
| 14 | 1110009100111 |
| 15 | 100109990011001 |