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 | 4095 |
| 2 | 8191 |
| 3 | 12287 |
| 4 | 16383 |
| 5 | 20479 |
| 6 | 24575 |
| 7 | 28671 |
| 8 | 29183 |
| 9 | 29695 |
| 10 | 30207 |
| 11 | 30719 |
| 12 | 31231 |
| 13 | 31743 |
| 14 | 32255 |
| 15 | 32319 |
| 16 | 32383 |
| 17 | 32447 |
| 18 | 32511 |
| 19 | 32575 |
| 20 | 32639 |
| 21 | 32703 |
| 22 | 32711 |
| 23 | 32719 |
| 24 | 32727 |
| 25 | 32735 |
| 26 | 32743 |
| 27 | 32751 |
| 28 | 32759 |
| 29 | 32760 |
| 30 | 32761 |
| 31 | 32762 |
| 32 | 32763 |
| 33 | 32764 |
| 34 | 32765 |
| 35 | 32766 |
| 36 | 36863 |
| 37 | 40959 |
| 38 | 45055 |