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 | 3 |
| 3 | 5 |
| 4 | 15 |
| 5 | 17 |
| 6 | 51 |
| 7 | 85 |
| 8 | 255 |
| 9 | 257 |
| 10 | 641 |
| 11 | 771 |
| 12 | 1285 |
| 13 | 1923 |
| 14 | 3205 |
| 15 | 3855 |
| 16 | 4369 |
| 17 | 9615 |
| 18 | 10897 |
| 19 | 13107 |
| 20 | 21845 |
| 21 | 32691 |
| 22 | 54485 |
| 23 | 65535 |
| 24 | 65537 |
| 25 | 114689 |
| 26 | 163455 |
| 27 | 164737 |
| 28 | 196611 |
| 29 | 274177 |
| 30 | 319489 |
| 31 | 327685 |
| 32 | 344067 |
| 33 | 494211 |
| 34 | 573445 |
| 35 | 822531 |
| 36 | 823685 |
| 37 | 958467 |
| 38 | 974849 |
| 39 | 983055 |