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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.

A378520 Dirichlet inverse of A336840, where A336840 is the inverse Möbius transform of A048673.

Table of values

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

List of values

[1, -3, -4, 1, -5, 10, -7, -1, -1, 12, -8, -2, -10, 16, 14, -2, -11, 5, -13, -2, 18, 18, -16, 6, -5, 22, -8, -2, -17, -20, -20, -4, 20, 24, 20, 1, -22, 28, 24, 8, -23, -20, -25, -2, 11, 34, -28, 14, -19, 18, 26, -2, -31, 32, 22, 12, 30, 36, -32, 4, -35, 42, 17, -8, 26, -20, -37, -2, 36, -14, -38, 3, -41, 46, 26, -2, 26]

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