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 | 6 |
| 3 | 36 |
| 4 | 216 |
| 5 | 210 |
| 6 | 7776 |
| 7 | 46656 |
| 8 | 1260 |
| 9 | 1679616 |
| 10 | 10077696 |
| 11 | 7560 |
| 12 | 362797056 |
| 13 | 44100 |
| 14 | 18480 |
| 15 | 78364164096 |
| 16 | 470184984576 |
| 17 | 272160 |
| 18 | 264600 |
| 19 | 101559956668416 |
| 20 | 1632960 |
| 21 | 3656158440062976 |
| 22 | 21936950640377856 |
| 23 | 180180 |
| 24 | 789730223053602816 |
| 25 | 9261000 |
| 26 | 58786560 |
| 27 | 170581728179578208256 |