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 | 10 |
| 2 | 1001 |
| 3 | 1000 |
| 4 | 1010 |
| 5 | 100101 |
| 6 | 100100 |
| 7 | 100001 |
| 8 | 100000 |
| 9 | 100010 |
| 10 | 101001 |
| 11 | 101000 |
| 12 | 101010 |
| 13 | 10010101 |
| 14 | 10010100 |
| 15 | 10010001 |
| 16 | 10010000 |
| 17 | 10010010 |
| 18 | 10000101 |
| 19 | 10000100 |
| 20 | 10000001 |
| 21 | 10000000 |
| 22 | 10000010 |
| 23 | 10001001 |
| 24 | 10001000 |
| 25 | 10001010 |
| 26 | 10100101 |
| 27 | 10100100 |
| 28 | 10100001 |
| 29 | 10100000 |