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.

A334432 Irregular triangle read by rows: T(m,k) gives the coefficients of x^k of the minimal polynomials of (2*cos(Pi/(2*m+1)))^2 = rho(2*n+1)^2, for m >= 0.

Table of values

n a(n)
0 -4
1 1
2 -1
3 1
4 1
5 -3
6 1
7 -1
8 6
9 -5
10 1
11 -1
12 9
13 -6
14 1
15 -1
16 15
17 -35
18 28
19 -9
20 1
21 1
22 -21
23 70
24 -84
25 45
26 -11
27 1
28 1
29 -24
30 26
31 -9
32 1
33 1
34 -36
35 210
36 -462
37 495
38 -286
39 91
40 -15
41 1
42 -1
43 45
44 -330
45 924
46 -1287
47 1001
48 -455
49 120
50 -17
51 1
52 1
53 -48
54 148
55 -146
56 64
57 -13
58 1

List of values

[-4, 1, -1, 1, 1, -3, 1, -1, 6, -5, 1, -1, 9, -6, 1, -1, 15, -35, 28, -9, 1, 1, -21, 70, -84, 45, -11, 1, 1, -24, 26, -9, 1, 1, -36, 210, -462, 495, -286, 91, -15, 1, -1, 45, -330, 924, -1287, 1001, -455, 120, -17, 1, 1, -48, 148, -146, 64, -13, 1]