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.

A123706 Matrix inverse of triangle A010766, where A010766(n,k) = [n/k], for n>=k>=1.

Table of values

n a(n)
1 1
2 -2
3 1
4 -1
5 -1
6 1
7 1
8 -1
9 -1
10 1
11 -1
12 0
13 0
14 -1
15 1
16 2
17 0
18 -1
19 0
20 -1
21 1
22 -1
23 0
24 0
25 0
26 0
27 -1
28 1
29 0
30 0
31 1
32 -1
33 0
34 0
35 -1
36 1
37 0
38 1
39 -1
40 0
41 0
42 0
43 0
44 -1
45 1
46 2
47 -1
48 0
49 1
50 -1
51 0
52 0
53 0
54 -1
55 1
56 -1
57 0
58 0
59 0
60 0
61 0
62 0
63 0
64 0
65 -1
66 1
67 -1
68 1
69 1
70 -1
71 1
72 -1
73 0
74 0
75 0
76 0
77 -1
78 1
79 -1
80 0
81 0
82 0
83 0
84 0
85 0
86 0
87 0
88 0
89 0
90 -1
91 1
92 2
93 -1
94 0
95 0
96 0
97 1
98 -1
99 0
100 0
101 0
102 0
103 0
104 -1
105 1
106 1
107 1
108 -1
109 1
110 -1
111 0
112 0
113 0

List of values

[1, -2, 1, -1, -1, 1, 1, -1, -1, 1, -1, 0, 0, -1, 1, 2, 0, -1, 0, -1, 1, -1, 0, 0, 0, 0, -1, 1, 0, 0, 1, -1, 0, 0, -1, 1, 0, 1, -1, 0, 0, 0, 0, -1, 1, 2, -1, 0, 1, -1, 0, 0, 0, -1, 1, -1, 0, 0, 0, 0, 0, 0, 0, 0, -1, 1, -1, 1, 1, -1, 1, -1, 0, 0, 0, 0, -1, 1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 1, 2, -1, 0, 0, 0, 1, -1, 0, 0, 0, 0, 0, -1, 1, 1, 1, -1, 1, -1, 0, 0, 0]