cp's OEIS Frontend

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.

A269416 Expansion of 3*(2 - x)/((1 - x)*(1 + x)^2).

Table of values

n a(n)
0 6
1 -9
2 15
3 -18
4 24
5 -27
6 33
7 -36
8 42
9 -45
10 51
11 -54
12 60
13 -63
14 69
15 -72
16 78
17 -81
18 87
19 -90
20 96
21 -99
22 105
23 -108
24 114
25 -117
26 123
27 -126
28 132
29 -135
30 141
31 -144
32 150
33 -153
34 159
35 -162
36 168
37 -171
38 177
39 -180
40 186
41 -189
42 195
43 -198
44 204
45 -207
46 213
47 -216
48 222
49 -225
50 231
51 -234
52 240

List of values

[6, -9, 15, -18, 24, -27, 33, -36, 42, -45, 51, -54, 60, -63, 69, -72, 78, -81, 87, -90, 96, -99, 105, -108, 114, -117, 123, -126, 132, -135, 141, -144, 150, -153, 159, -162, 168, -171, 177, -180, 186, -189, 195, -198, 204, -207, 213, -216, 222, -225, 231, -234, 240]