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 | 2 |
| 2 | 24 |
| 3 | 48 |
| 4 | 5760 |
| 5 | 1280 |
| 6 | 580608 |
| 7 | 1161216 |
| 8 | 1393459200 |
| 9 | 398131200 |
| 10 | 367873228800 |
| 11 | 363331584 |
| 12 | 24103053950976000 |
| 13 | 4382373445632000 |
| 14 | 115694658964684800 |
| 15 | 88995891511296000 |
| 16 | 726206474732175360000 |
| 17 | 6455168664286003200 |