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 | -2 |
2 | 1 |
3 | 12 |
4 | -2 |
5 | 2 |
6 | 0 |
7 | 12 |
8 | -4 |
9 | 6 |
10 | -720 |
11 | 0 |
12 | 24 |
13 | -12 |
14 | 24 |
15 | 0 |
16 | -720 |
17 | 0 |
18 | 72 |
19 | -48 |
20 | 120 |
21 | 30240 |
22 | 0 |
23 | -1440 |
24 | 0 |
25 | 288 |
26 | -240 |
27 | 720 |
28 | 0 |
29 | 30240 |
30 | 0 |
31 | -4320 |
32 | 0 |
33 | 1440 |
34 | -1440 |
35 | 5040 |
36 | -1209600 |
37 | 0 |
38 | 60480 |
39 | 0 |
40 | -17280 |
41 | 0 |
42 | 8640 |
43 | -10080 |
44 | 40320 |
45 | 0 |
46 | -1209600 |
47 | 0 |
48 | 181440 |
49 | 0 |
50 | -86400 |
51 | 0 |
52 | 60480 |
53 | -80640 |
54 | 362880 |