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 | 4 |
| 3 | 7 |
| 4 | 9 |
| 5 | 27 |
| 6 | 36 |
| 7 | 63 |
| 8 | 117 |
| 9 | 171 |
| 10 | 189 |
| 11 | 252 |
| 12 | 351 |
| 13 | 468 |
| 14 | 504 |
| 15 | 756 |
| 16 | 819 |
| 17 | 1197 |
| 18 | 1953 |
| 19 | 2223 |
| 20 | 2457 |
| 21 | 3276 |
| 22 | 3591 |
| 23 | 4788 |
| 24 | 5733 |
| 25 | 6552 |
| 26 | 9576 |
| 27 | 9828 |
| 28 | 14364 |
| 29 | 15561 |
| 30 | 25389 |
| 31 | 30303 |
| 32 | 35217 |
| 33 | 37107 |
| 34 | 44289 |
| 35 | 46683 |
| 36 | 62244 |
| 37 | 76167 |
| 38 | 90909 |
| 39 | 101556 |
| 40 | 108927 |
| 41 | 124488 |
| 42 | 186732 |
| 43 | 296856 |
| 44 | 304668 |