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 | 6 |
| 1 | 72 |
| 2 | 6480 |
| 3 | 155520 |
| 4 | 6531840 |
| 5 | 1175731200 |
| 6 | 7054387200 |
| 7 | 338610585600 |
| 8 | 1005673439232000 |
| 9 | 84476568895488000 |
| 10 | 6589172373848064000 |
| 11 | 2372102054585303040000 |
| 12 | 14232612327511818240000 |
| 13 | 170791347930141818880000 |
| 14 | 9145876681659094401024000000 |