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 | 129 |
| 2 | 189 |
| 3 | 369 |
| 4 | 435 |
| 5 | 549 |
| 6 | 555 |
| 7 | 561 |
| 8 | 819 |
| 9 | 1245 |
| 10 | 1491 |
| 11 | 1719 |
| 12 | 1779 |
| 13 | 1839 |
| 14 | 1875 |
| 15 | 1935 |
| 16 | 2175 |
| 17 | 2289 |
| 18 | 2415 |
| 19 | 2451 |
| 20 | 2595 |
| 21 | 2709 |
| 22 | 2769 |
| 23 | 3141 |
| 24 | 3441 |
| 25 | 4401 |
| 26 | 4611 |
| 27 | 4851 |
| 28 | 5655 |
| 29 | 5775 |
| 30 | 6075 |
| 31 | 6099 |
| 32 | 6795 |
| 33 | 6969 |
| 34 | 7125 |
| 35 | 7239 |
| 36 | 7365 |
| 37 | 8109 |
| 38 | 8139 |
| 39 | 8325 |
| 40 | 8361 |
| 41 | 8385 |
| 42 | 8535 |
| 43 | 8685 |
| 44 | 9591 |
| 45 | 9765 |