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) |
---|---|
1 | 1 |
2 | 2 |
3 | 6 |
4 | 6 |
5 | 30 |
6 | 180 |
7 | 1260 |
8 | 2520 |
9 | 2520 |
10 | 25200 |
11 | 277200 |
12 | 831600 |
13 | 10810800 |
14 | 151351200 |
15 | 2270268000 |
16 | 2270268000 |
17 | 38594556000 |
18 | 77189112000 |
19 | 1466593128000 |
20 | 7332965640000 |
21 | 153992278440000 |
22 | 3387830125680000 |
23 | 77920092890640000 |
24 | 467520557343840000 |
25 | 467520557343840000 |