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 | 9 |
| 3 | 42 |
| 4 | 64 |
| 5 | 75 |
| 6 | 255 |
| 7 | 312 |
| 8 | 378 |
| 9 | 525 |
| 10 | 648 |
| 11 | 738 |
| 12 | 1111 |
| 13 | 1278 |
| 14 | 2224 |
| 15 | 2448 |
| 16 | 2784 |
| 17 | 2817 |
| 18 | 3504 |
| 19 | 3864 |
| 20 | 3875 |
| 21 | 4977 |
| 22 | 5238 |
| 23 | 5495 |
| 24 | 5888 |
| 25 | 8992 |
| 26 | 9712 |
| 27 | 10368 |
| 28 | 11358 |
| 29 | 11817 |
| 30 | 12348 |
| 31 | 12875 |
| 32 | 13136 |
| 33 | 13584 |
| 34 | 13775 |
| 35 | 13832 |
| 36 | 13944 |
| 37 | 15351 |
| 38 | 15384 |
| 39 | 15744 |
| 40 | 15900 |
| 41 | 16912 |
| 42 | 17768 |
| 43 | 18095 |
| 44 | 19344 |
| 45 | 20448 |