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 | 432 |
| 2 | 2592 |
| 3 | 139968 |
| 4 | 444528 |
| 5 | 472392 |
| 6 | 995328 |
| 7 | 3456000 |
| 8 | 5174928 |
| 9 | 6561000 |
| 10 | 10125000 |
| 11 | 15552000 |
| 12 | 15804072 |
| 13 | 17496000 |
| 14 | 25299648 |
| 15 | 28449792 |
| 16 | 37340352 |
| 17 | 54675000 |
| 18 | 63700992 |
| 19 | 85957848 |
| 20 | 88723728 |
| 21 | 99574272 |
| 22 | 120891312 |
| 23 | 144027072 |
| 24 | 169869312 |
| 25 | 177147000 |
| 26 | 197413632 |
| 27 | 253125000 |
| 28 | 259308000 |