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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.

A329584 phi(A327922(n))/4, for n >= 1, with phi = A000010 (Euler's totient).

Table of values

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

List of values

[1, 3, 2, 4, 3, 5, 7, 5, 6, 9, 6, 10, 6, 8, 13, 10, 9, 15, 9, 12, 11, 18, 10, 15, 16, 14, 22, 18, 15, 18, 24, 15, 25, 12, 27, 18, 28, 22, 18, 24, 20, 25, 21, 27, 18, 34, 23, 30, 28, 21, 37, 24, 30, 39, 26, 33, 20, 39, 27, 43, 30, 29, 45, 30, 36, 40, 27, 48]

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

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