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 | 12 |
9 | -4 |
10 | -3 |
11 | 1 |
12 | 24 |
13 | -60 |
14 | 20 |
15 | 30 |
16 | -5 |
17 | -10 |
18 | 1 |
19 | -120 |
20 | 360 |
21 | -120 |
22 | -270 |
23 | 30 |
24 | 120 |
25 | 30 |
26 | -6 |
27 | -15 |
28 | -10 |
29 | 1 |
30 | 720 |
31 | -2520 |
32 | 840 |
33 | 2520 |
34 | -210 |
35 | -1260 |
36 | -630 |
37 | 42 |
38 | 210 |
39 | 140 |
40 | 210 |
41 | -7 |
42 | -21 |
43 | -35 |
44 | 1 |