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.

A198637 Coefficient table for the characteristic polynomials of the adjacency matrices of the cycle graphs C_n.

Table of values

n a(n)
0 1
1 0
2 1
3 -4
4 0
5 1
6 -2
7 -3
8 0
9 1
10 0
11 0
12 -4
13 0
14 1
15 -2
16 5
17 0
18 -5
19 0
20 1
21 -4
22 0
23 9
24 0
25 -6
26 0
27 1
28 -2
29 -7
30 0
31 14
32 0
33 -7
34 0
35 1
36 0
37 0
38 -16
39 0
40 20
41 0
42 -8
43 0
44 1
45 -2
46 9
47 0
48 -30
49 0
50 27
51 0
52 -9
53 0
54 1
55 -4
56 0
57 25
58 0
59 -50
60 0
61 35
62 0
63 -10
64 0
65 1
66 -2
67 -11
68 0
69 55
70 0
71 -77
72 0
73 44
74 0
75 -11
76 0
77 1
78 0
79 0
80 -36
81 0
82 105
83 0
84 -112
85 0
86 54
87 0
88 -12
89 0
90 1

List of values

[1, 0, 1, -4, 0, 1, -2, -3, 0, 1, 0, 0, -4, 0, 1, -2, 5, 0, -5, 0, 1, -4, 0, 9, 0, -6, 0, 1, -2, -7, 0, 14, 0, -7, 0, 1, 0, 0, -16, 0, 20, 0, -8, 0, 1, -2, 9, 0, -30, 0, 27, 0, -9, 0, 1, -4, 0, 25, 0, -50, 0, 35, 0, -10, 0, 1, -2, -11, 0, 55, 0, -77, 0, 44, 0, -11, 0, 1, 0, 0, -36, 0, 105, 0, -112, 0, 54, 0, -12, 0, 1]