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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.

A354186 Dirichlet inverse of A348717.

Table of values

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

List of values

[1, -2, -2, 0, -2, 2, -2, 0, 0, -2, -2, 4, -2, -6, 2, 0, -2, -2, -2, 12, -2, -14, -2, 0, 0, -18, 0, 20, -2, 10, -2, 0, -6, -26, 2, 8, -2, -30, -14, 0, -2, 30, -2, 36, 4, -38, -2, 0, 0, -18, -18, 44, -2, -6, -2, 0, -26, -50, -2, -4, -2, -54, 12, 0, -6, 54, -2, 60, -30, 2, -2, -8, -2, -66, -2, 68, 2, 90, -2, 0, 0, -74]

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