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 | 10 |
| 3 | 10000101 |
| 4 | 100 |
| 5 | 100001 |
| 6 | 100001010 |
| 7 | 10000100010010101 |
| 8 | 1000 |
| 9 | 10000100010010101001 |
| 10 | 1000010 |
| 11 | 100001000100101 |
| 12 | 1000010100 |
| 13 | 1000010001 |
| 14 | 100001000100101010 |
| 15 | 100001000001010101 |
| 16 | 10000 |
| 17 | 1000010001001 |
| 18 | 100001000100101010010 |
| 19 | 100001000100101000101 |
| 20 | 10000100 |