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 | 11 |
| 1 | 22 |
| 2 | 121 |
| 3 | 154 |
| 4 | 352 |
| 5 | 407 |
| 6 | 704 |
| 7 | 781 |
| 8 | 1177 |
| 9 | 1276 |
| 10 | 1771 |
| 11 | 1892 |
| 12 | 2486 |
| 13 | 2629 |
| 14 | 3322 |
| 15 | 3487 |
| 16 | 4279 |
| 17 | 4466 |
| 18 | 5357 |
| 19 | 5566 |
| 20 | 6556 |
| 21 | 6787 |
| 22 | 7876 |
| 23 | 8129 |
| 24 | 9317 |
| 25 | 9592 |
| 26 | 10879 |
| 27 | 11176 |
| 28 | 12562 |
| 29 | 12881 |
| 30 | 14366 |
| 31 | 14707 |
| 32 | 16291 |
| 33 | 16654 |
| 34 | 18337 |
| 35 | 18722 |
| 36 | 20504 |
| 37 | 20911 |
| 38 | 22792 |
| 39 | 23221 |