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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.

A209802 Partial sums of exponential Möbius function, A166234.

Table of values

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

List of values

[1, 2, 3, 2, 3, 4, 5, 4, 3, 4, 5, 4, 5, 6, 7, 7, 8, 7, 8, 7, 8, 9, 10, 9, 8, 9, 8, 7, 8, 9, 10, 9, 10, 11, 12, 13, 14, 15, 16, 15, 16, 17, 18, 17, 16, 17, 18, 18, 17, 16, 17, 16, 17, 16, 17, 16, 17, 18, 19, 18, 19, 20, 19, 20, 21, 22, 23, 22, 23, 24, 25, 26]

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