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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.

A349447 Dirichlet convolution of A003602 (Kimberling's paraphrases) with A326937 (Dirichlet inverse of A000265).

Table of values

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

List of values

[1, 0, -1, 0, -2, 0, -3, 0, -1, 0, -5, 0, -6, 0, 4, 0, -8, 0, -9, 0, 6, 0, -11, 0, -2, 0, -1, 0, -14, 0, -15, 0, 10, 0, 12, 0, -18, 0, 12, 0, -20, 0, -21, 0, 4, 0, -23, 0, -3, 0, 16, 0, -26, 0, 20, 0, 18, 0, -29, 0, -30, 0, 6, 0, 24, 0, -33, 0, 22, 0, -35, 0, -36, 0, 4, 0, 30, 0, -39, 0, -1, 0, -41, 0, 32, 0, 28]