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 | 7 |
| 2 | 14 |
| 3 | 28 |
| 4 | 56 |
| 5 | 112 |
| 6 | 224 |
| 7 | 448 |
| 8 | 896 |
| 9 | 1792 |
| 10 | 3584 |
| 11 | 3591 |
| 12 | 7168 |
| 13 | 7175 |
| 14 | 7182 |
| 15 | 14336 |
| 16 | 14343 |
| 17 | 14350 |
| 18 | 14364 |
| 19 | 28672 |
| 20 | 28679 |
| 21 | 28686 |
| 22 | 28700 |
| 23 | 28728 |
| 24 | 57344 |
| 25 | 57351 |
| 26 | 57358 |
| 27 | 57372 |
| 28 | 57400 |
| 29 | 57456 |
| 30 | 114688 |
| 31 | 114695 |
| 32 | 114702 |
| 33 | 114716 |
| 34 | 114744 |
| 35 | 114800 |
| 36 | 114912 |