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.

A334429 Irregular triangle read by rows: T(n, k) gives the coefficients of x^k of the minimal polynomials of the algebraic number over the rationals rho(n)^2, with rho(n) = 2*cos(Pi/n), for n >= 1.

Table of values

n a(n)
1 -4
2 1
3 0
4 1
5 -1
6 1
7 -2
8 1
9 1
10 -3
11 1
12 -3
13 1
14 -1
15 6
16 -5
17 1
18 2
19 -4
20 1
21 -1
22 9
23 -6
24 1
25 5
26 -5
27 1
28 -1
29 15
30 -35
31 28
32 -9
33 1
34 1
35 -4
36 1
37 1
38 -21
39 70
40 -84
41 45
42 -11
43 1
44 -7
45 14
46 -7
47 1
48 1
49 -24
50 26
51 -9
52 1
53 2
54 -16
55 20
56 -8
57 1
58 1
59 -36
60 210
61 -462
62 495
63 -286
64 91
65 -15
66 1
67 -3
68 9
69 -6
70 1
71 -1
72 45
73 -330
74 924
75 -1287
76 1001
77 -455
78 120
79 -17
80 1
81 1
82 -12
83 19
84 -8
85 1

List of values

[-4, 1, 0, 1, -1, 1, -2, 1, 1, -3, 1, -3, 1, -1, 6, -5, 1, 2, -4, 1, -1, 9, -6, 1, 5, -5, 1, -1, 15, -35, 28, -9, 1, 1, -4, 1, 1, -21, 70, -84, 45, -11, 1, -7, 14, -7, 1, 1, -24, 26, -9, 1, 2, -16, 20, -8, 1, 1, -36, 210, -462, 495, -286, 91, -15, 1, -3, 9, -6, 1, -1, 45, -330, 924, -1287, 1001, -455, 120, -17, 1, 1, -12, 19, -8, 1]