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.

A113279 Triangle T(n,k) of coefficients of r_1^n+r_2^n in terms of p and q, where r_1,r_2 are the roots of x^2+px+q=0.

Table of values

n a(n)
0 2
1 -1
2 1
3 -2
4 -1
5 3
6 1
7 -4
8 2
9 -1
10 5
11 -5
12 1
13 -6
14 9
15 -2
16 -1
17 7
18 -14
19 7
20 1
21 -8
22 20
23 -16
24 2
25 -1
26 9
27 -27
28 30
29 -9
30 1
31 -10
32 35
33 -50
34 25
35 -2
36 -1
37 11
38 -44
39 77
40 -55
41 11
42 1
43 -12
44 54
45 -112
46 105
47 -36
48 2
49 -1
50 13
51 -65
52 156
53 -182
54 91
55 -13
56 1
57 -14
58 77
59 -210
60 294
61 -196
62 49
63 -2
64 -1
65 15
66 -90
67 275
68 -450
69 378
70 -140
71 15

List of values

[2, -1, 1, -2, -1, 3, 1, -4, 2, -1, 5, -5, 1, -6, 9, -2, -1, 7, -14, 7, 1, -8, 20, -16, 2, -1, 9, -27, 30, -9, 1, -10, 35, -50, 25, -2, -1, 11, -44, 77, -55, 11, 1, -12, 54, -112, 105, -36, 2, -1, 13, -65, 156, -182, 91, -13, 1, -14, 77, -210, 294, -196, 49, -2, -1, 15, -90, 275, -450, 378, -140, 15]