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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.

A092693 Sum of iterated phi(n).

Table of values

n a(n)
1 0
2 1
3 3
4 3
5 7
6 3
7 9
8 7
9 9
10 7
11 17
12 7
13 19
14 9
15 15
16 15
17 31
18 9
19 27
20 15
21 19
22 17
23 39
24 15
25 35
26 19
27 27
28 19
29 47
30 15
31 45
32 31
33 35
34 31
35 39
36 19
37 55
38 27
39 39
40 31
41 71
42 19
43 61
44 35
45 39
46 39
47 85
48 31
49 61
50 35
51 63
52 39
53 91
54 27
55 71
56 39
57 55
58 47
59 105
60 31
61 91
62 45
63 55
64 63
65 79
66 35
67 101
68 63
69 79
70 39
71 109
72 39
73 111

List of values

[0, 1, 3, 3, 7, 3, 9, 7, 9, 7, 17, 7, 19, 9, 15, 15, 31, 9, 27, 15, 19, 17, 39, 15, 35, 19, 27, 19, 47, 15, 45, 31, 35, 31, 39, 19, 55, 27, 39, 31, 71, 19, 61, 35, 39, 39, 85, 31, 61, 35, 63, 39, 91, 27, 71, 39, 55, 47, 105, 31, 91, 45, 55, 63, 79, 35, 101, 63, 79, 39, 109, 39, 111]

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

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