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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.

A346242 Dirichlet inverse of A324198, where A324198(n) = gcd(n, A276086(n)).

Table of values

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

List of values

[1, -1, -3, 0, -1, 5, -1, 0, 6, -3, -1, -2, -1, 1, -9, 0, -1, -16, -1, 4, 3, 1, -1, 0, -24, 1, -12, 0, -1, 43, -1, 0, 3, 1, -5, 14, -1, 1, 3, 0, -1, -11, -1, 0, 54, 1, -1, 0, -6, 32, 3, 0, -1, 44, -3, -6, 3, 1, -1, -50, -1, 1, -24, 0, 1, -5, -1, 0, 3, -15, -1, -4, -1, 1, 96, 0, -5, -5, -1, 0, 24, 1, -1, 8, -3, 1, 3, 0, -1]