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 | 1 |
3 | -4 |
4 | -20 |
5 | -144 |
6 | 704 |
7 | 34816 |
8 | 1101824 |
9 | 12124160 |
10 | -4499439616 |
11 | -586464362496 |
12 | -99309307559936 |
13 | 33947352788107264 |
14 | 26466630265219317760 |
15 | 25787111566764821970944 |
16 | -7045529183328701486465024 |