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 | 1 |
2 | -12 |
3 | -1884 |
4 | 3843360 |
5 | 101929750560 |
6 | -35142523960072320 |
7 | -157510092662430660915840 |
8 | 9177558663913662855639573043200 |
9 | 6951672507594336724476921764731548211200 |
10 | -68453363408439970530162052940526993784438155878400 |
11 | -8762814767092584880014595182992133840006733019391100715212800 |