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) |
---|---|
9 | 45360 |
10 | 9862560 |
11 | 1160973000 |
12 | 99904860000 |
13 | 7103580541200 |
14 | 445556635524000 |
15 | 25652184715357200 |
16 | 1391455702596960000 |
17 | 72404516222438400000 |
18 | 3661224054771419136000 |
19 | 181631020686490222848000 |