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 | 16 |
| 2 | 936 |
| 3 | 87336 |
| 4 | 9929000 |
| 5 | 1267945800 |
| 6 | 174470351760 |
| 7 | 25288627665840 |
| 8 | 3812023555600680 |
| 9 | 591698219294831040 |
| 10 | 94094630284245419136 |
| 11 | 15245574601442117896656 |
| 12 | 2511237778001138580615056 |
| 13 | 419023242828557373939828896 |
| 14 | 70761397145460782667032755200 |