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 | 0 |
2 | 0 |
3 | 6 |
4 | 0 |
5 | 60 |
6 | 1440 |
7 | 840 |
8 | 100800 |
9 | 1829520 |
10 | 6350400 |
11 | 419459040 |
12 | 7125148800 |
13 | 72657224640 |
14 | 3691516308480 |
15 | 66691652227200 |
16 | 1362335156582400 |
17 | 60600254383468800 |
18 | 1285478183493504000 |
19 | 40463468995171622400 |
20 | 1701073478756171520000 |