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 | 4 |
| 2 | 27 |
| 3 | 1808 |
| 4 | 3125 |
| 5 | 12204 |
| 6 | 12707 |
| 7 | 82377 |
| 8 | 269827 |
| 9 | 823543 |
| 10 | 1412500 |
| 11 | 7089739 |
| 12 | 9534375 |
| 13 | 46873785 |
| 14 | 78192979 |
| 15 | 372241436 |