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 | 66 |
| 2 | 2772 |
| 3 | 96096 |
| 4 | 3027024 |
| 5 | 90810720 |
| 6 | 2663781120 |
| 7 | 77630192640 |
| 8 | 2270683134720 |
| 9 | 67111301537280 |
| 10 | 2013339046118400 |
| 11 | 61498356317798400 |
| 12 | 1916698771904716800 |
| 13 | 61039483966811750400 |
| 14 | 1988143192061868441600 |