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 | 2 |
3 | 4 |
4 | -224 |
5 | -682 |
6 | 448860 |
7 | 1798632 |
8 | -5812053904 |
9 | -29073764054 |
10 | 308536033263028 |
11 | 1851536040675260 |
12 | -51042181394221030584 |
13 | -357323352359720720226 |
14 | 21912757051634305821218156 |
15 | 175309202992453704954823888 |