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 | 6 |
| 4 | 36 |
| 5 | 186 |
| 6 | 36 |
| 7 | 216 |
| 8 | 5766 |
| 9 | 5766 |
| 10 | 216 |
| 11 | 1296 |
| 12 | 178746 |
| 13 | 923526 |
| 14 | 178746 |
| 15 | 1296 |
| 16 | 7776 |
| 17 | 5541126 |
| 18 | 147918906 |
| 19 | 147918906 |
| 20 | 5541126 |
| 21 | 7776 |
| 22 | 46656 |
| 23 | 171774906 |
| 24 | 23691810366 |
| 25 | 122408393436 |
| 26 | 23691810366 |
| 27 | 171774906 |
| 28 | 46656 |
| 29 | 279936 |
| 30 | 5325022086 |