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 | 1 |
| 1 | 36 |
| 2 | 2796 |
| 3 | 325296 |
| 4 | 50460324 |
| 5 | 9784339056 |
| 6 | 2276639188116 |
| 7 | 618021679767696 |
| 8 | 191736660977760804 |
| 9 | 66920493102763469616 |
| 10 | 25951985825417984806836 |
| 11 | 11070691364651231290738896 |
| 12 | 5151900329218737241490290884 |