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 | 1 |
3 | 0 |
4 | -1 |
5 | 4 |
6 | 0 |
7 | 1 |
8 | -12 |
9 | 30 |
10 | 0 |
11 | -1 |
12 | 28 |
13 | -180 |
14 | 336 |
15 | 0 |
16 | 1 |
17 | -60 |
18 | 750 |
19 | -3360 |
20 | 5040 |
21 | 0 |
22 | -1 |
23 | 124 |
24 | -2700 |
25 | 21840 |
26 | -75600 |
27 | 95040 |
28 | 0 |
29 | 1 |
30 | -252 |
31 | 9030 |
32 | -117600 |
33 | 705600 |
34 | -1995840 |
35 | 2162160 |
36 | 0 |
37 | -1 |
38 | 508 |
39 | -28980 |
40 | 571536 |
41 | -5292000 |
42 | 25280640 |
43 | -60540480 |
44 | 57657600 |