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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.

A076369 a(n) = n + mu(n), where mu is the Moebius function (A008683).

Table of values

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

List of values

[2, 1, 2, 4, 4, 7, 6, 8, 9, 11, 10, 12, 12, 15, 16, 16, 16, 18, 18, 20, 22, 23, 22, 24, 25, 27, 27, 28, 28, 29, 30, 32, 34, 35, 36, 36, 36, 39, 40, 40, 40, 41, 42, 44, 45, 47, 46, 48, 49, 50, 52, 52, 52, 54, 56, 56, 58, 59, 58, 60, 60, 63, 63, 64, 66, 65, 66, 68, 70, 69, 70, 72]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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