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) |
---|---|
1 | 1 |
2 | -1 |
3 | 1 |
4 | 2 |
5 | -3 |
6 | 1 |
7 | -6 |
8 | 3 |
9 | 8 |
10 | -6 |
11 | 1 |
12 | 24 |
13 | -30 |
14 | -20 |
15 | 15 |
16 | 20 |
17 | -10 |
18 | 1 |
19 | -120 |
20 | 90 |
21 | 144 |
22 | 40 |
23 | -15 |
24 | -90 |
25 | -120 |
26 | 45 |
27 | 40 |
28 | -15 |
29 | 1 |
30 | 720 |
31 | -840 |
32 | -504 |
33 | -420 |
34 | 630 |
35 | 504 |
36 | 210 |
37 | 280 |
38 | -105 |
39 | -210 |
40 | -420 |
41 | 105 |
42 | 70 |
43 | -21 |
44 | 1 |
45 | -5040 |
46 | 5760 |
47 | 3360 |
48 | 1260 |
49 | -3360 |
50 | 2688 |
51 | -1260 |
52 | -4032 |
53 | -3360 |
54 | -1120 |