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) |
---|---|
8 | 5040 |
9 | 408240 |
10 | 22680000 |
11 | 1106859600 |
12 | 51732172800 |
13 | 2408384618640 |
14 | 113960430904320 |
15 | 5541379593750000 |
16 | 278592031202284800 |
17 | 14529619059476320800 |
18 | 787422201081850414080 |
19 | 44373594768472437642720 |
20 | 2600326096882824360960000 |
21 | 158404803877320370312773600 |