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 | 12 |
| 3 | 24 |
| 4 | 168 |
| 5 | 552 |
| 6 | 2184 |
| 7 | 3864 |
| 8 | 4872 |
| 9 | 13944 |
| 10 | 28056 |
| 11 | 35448 |
| 12 | 47208 |
| 13 | 50232 |
| 14 | 63336 |
| 15 | 70728 |
| 16 | 75624 |
| 17 | 76728 |
| 18 | 112056 |
| 19 | 172536 |
| 20 | 181272 |
| 21 | 224952 |
| 22 | 239736 |
| 23 | 254472 |
| 24 | 287448 |
| 25 | 320712 |
| 26 | 364728 |
| 27 | 381432 |
| 28 | 404376 |
| 29 | 457608 |
| 30 | 460824 |
| 31 | 508872 |
| 32 | 529368 |
| 33 | 537096 |
| 34 | 613704 |
| 35 | 645288 |
| 36 | 813624 |