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 | 24 |
| 1 | 144 |
| 2 | 1008 |
| 3 | 8064 |
| 4 | 72576 |
| 5 | 725760 |
| 6 | 7983360 |
| 7 | 95800320 |
| 8 | 1245404160 |
| 9 | 17435658240 |
| 10 | 261534873600 |
| 11 | 4184557977600 |
| 12 | 71137485619200 |
| 13 | 1280474741145600 |
| 14 | 24329020081766400 |
| 15 | 486580401635328000 |
| 16 | 10218188434341888000 |