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.

A192011 Let P(0,x) = -1, P(1,x) = 2*x, and P(n,x) = x*P(n-1,x) - P(n-2,x) for n > 1. This sequence is the triangle of polynomial coefficients in order of decreasing exponents.

Table of values

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

List of values

[-1, 2, 0, 2, 0, 1, 2, 0, -1, 0, 2, 0, -3, 0, -1, 2, 0, -5, 0, 0, 0, 2, 0, -7, 0, 3, 0, 1, 2, 0, -9, 0, 8, 0, 1, 0, 2, 0, -11, 0, 15, 0, -2, 0, -1, 2, 0, -13, 0, 24, 0, -10, 0, -2, 0, 2, 0, -15, 0, 35, 0, -25, 0, 0, 0, 1, 2, 0, -17, 0, 48, 0, -49, 0, 10, 0, 3, 0, 2, 0, -19, 0, 63, 0, -84, 0, 35, 0, 3, 0, -1]