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 | -2 |
5 | 2 |
6 | 0 |
7 | 4 |
8 | -12 |
9 | 6 |
10 | 0 |
11 | -8 |
12 | 56 |
13 | -72 |
14 | 24 |
15 | 0 |
16 | 16 |
17 | -240 |
18 | 600 |
19 | -480 |
20 | 120 |
21 | 0 |
22 | -32 |
23 | 992 |
24 | -4320 |
25 | 6240 |
26 | -3600 |
27 | 720 |
28 | 0 |
29 | 64 |
30 | -4032 |
31 | 28896 |
32 | -67200 |
33 | 67200 |
34 | -30240 |
35 | 5040 |
36 | 0 |
37 | -128 |
38 | 16256 |
39 | -185472 |
40 | 653184 |
41 | -1008000 |
42 | 766080 |
43 | -282240 |
44 | 40320 |