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 | 0 |
3 | -4 |
4 | 0 |
5 | 16 |
6 | 108 |
7 | -64 |
8 | -864 |
9 | -2660 |
10 | -22464 |
11 | 33968 |
12 | 272268 |
13 | 1217152 |
14 | 4629312 |
15 | 68208188 |
16 | -98077824 |
17 | -1089798320 |
18 | -5246016084 |
19 | -32436365248 |
20 | -180561473568 |
21 | -3404617719332 |
22 | 5203858765248 |
23 | 55902314446832 |
24 | 354805454664396 |
25 | 2229923884913920 |