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) |
|---|---|
| 0 | 10077696 |
| 1 | 1 |
| 2 | 216 |
| 3 | 36 |
| 4 | 46656 |
| 5 | 46656 |
| 6 | 6 |
| 7 | 7776 |
| 8 | 2176782336 |
| 9 | 1296 |
| 10 | 10077696 |
| 11 | 2821109907456 |
| 12 | 1296 |
| 13 | 13060694016 |
| 14 | 6140942214464815497216 |
| 15 | 101559956668416 |
| 16 | 216 |
| 17 | 60466176 |
| 18 | 470184984576 |
| 19 | 21936950640377856 |
| 20 | 170581728179578208256 |
| 21 | 216 |