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 | 10 |
| 2 | 100 |
| 3 | 101 |
| 4 | 1000 |
| 5 | 1001 |
| 6 | 1010 |
| 7 | 1011 |
| 8 | 10000 |
| 9 | 10001 |
| 10 | 10010 |
| 11 | 10011 |
| 12 | 10100 |
| 13 | 10101 |
| 14 | 10110 |
| 15 | 10111 |
| 16 | 100000 |
| 17 | 100001 |
| 18 | 100010 |
| 19 | 100011 |
| 20 | 100100 |
| 21 | 100101 |
| 22 | 100110 |
| 23 | 100111 |
| 24 | 101000 |
| 25 | 101001 |
| 26 | 101010 |
| 27 | 101011 |
| 28 | 101100 |
| 29 | 101101 |
| 30 | 101110 |
| 31 | 101111 |