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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.

A348001 Number of distinct values obtained when the unitary totient function (A047994) is applied to the unitary divisors of n.

Table of values

n a(n)
1 1
2 1
3 2
4 2
5 2
6 2
7 2
8 2
9 2
10 2
11 2
12 4
13 2
14 2
15 4
16 2
17 2
18 2
19 2
20 4
21 4
22 2
23 2
24 4
25 2
26 2
27 2
28 4
29 2
30 4
31 2
32 2
33 4
34 2
35 4
36 4
37 2
38 2
39 4
40 4
41 2
42 4
43 2
44 4
45 4
46 2
47 2
48 4
49 2
50 2
51 4
52 4
53 2
54 2
55 4
56 4
57 4
58 2
59 2
60 8
61 2
62 2
63 4
64 2
65 4
66 4
67 2
68 4
69 4
70 4
71 2
72 4
73 2
74 2
75 4
76 4
77 4
78 4
79 2
80 4
81 2
82 2
83 2
84 7
85 4
86 2
87 4

List of values

[1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 4, 2, 2, 4, 2, 2, 2, 2, 4, 4, 2, 2, 4, 2, 2, 2, 4, 2, 4, 2, 2, 4, 2, 4, 4, 2, 2, 4, 4, 2, 4, 2, 4, 4, 2, 2, 4, 2, 2, 4, 4, 2, 2, 4, 4, 4, 2, 2, 8, 2, 2, 4, 2, 4, 4, 2, 4, 4, 4, 2, 4, 2, 2, 4, 4, 4, 4, 2, 4, 2, 2, 2, 7, 4, 2, 4]

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