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.

A175739 Triangle T(n,m) with the coefficient [x^m] of the polynomial x^(2*n) - x^(2*n - 1) - x^n - x + 1 in row n, column m, 1 <= m <= 2*n. T(0,0) = 1.

Table of values

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

List of values

[1, 1, -3, 1, 1, -1, -1, -1, 1, 1, -1, 0, -1, 0, -1, 1, 1, -1, 0, 0, -1, 0, 0, -1, 1, 1, -1, 0, 0, 0, -1, 0, 0, 0, -1, 1, 1, -1, 0, 0, 0, 0, -1, 0, 0, 0, 0, -1, 1, 1, -1, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0, -1, 1, 1, -1, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, -1, 1, 1, -1, 0, 0, 0, 0, 0, 0, 0]