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.

A230079 Table a(n,m) of coefficients of inverses of rho(A230078(n)), n>=2, with rho(k):= 2*cos(Pi/k), in the power basis of Q(rho(A230078(n))).

Table of values

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

List of values

[1, -1, 1, 2, 1, -1, -3, 0, 1, 3, 3, -4, -1, 1, 0, 4, 0, -1, -3, 6, 4, -5, -1, 1, 4, 4, -1, -1, -4, 10, 10, -15, -6, 7, 1, -1, 5, 10, -20, -15, 21, 7, -8, -1, 1, 0, 12, 0, -19, 0, 8, 0, -1, -8, -8, 6, 6, -1, -1, 6, 15, -35, -35, 56, 28, -36, -9, 10, 1, -1]