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 | 31 |
| 2 | 63 |
| 3 | 255 |
| 4 | 273 |
| 5 | 364 |
| 6 | 511 |
| 7 | 546 |
| 8 | 728 |
| 9 | 777 |
| 10 | 931 |
| 11 | 1023 |
| 12 | 1365 |
| 13 | 1464 |
| 14 | 2730 |
| 15 | 3280 |
| 16 | 3549 |
| 17 | 3783 |
| 18 | 3906 |
| 19 | 4095 |
| 20 | 4557 |
| 21 | 6560 |
| 22 | 7566 |
| 23 | 7812 |
| 24 | 8191 |
| 25 | 9114 |
| 26 | 9331 |
| 27 | 9841 |
| 28 | 10507 |
| 29 | 11349 |
| 30 | 11718 |
| 31 | 13671 |
| 32 | 14043 |
| 33 | 14763 |
| 34 | 15132 |
| 35 | 15624 |
| 36 | 16383 |
| 37 | 18291 |
| 38 | 18662 |
| 39 | 18915 |
| 40 | 19608 |
| 41 | 19682 |
| 42 | 21845 |
| 43 | 22351 |
| 44 | 22698 |