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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.

A106476 Sequence array of Euler phi function.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 1
5 1
6 2
7 2
8 1
9 1
10 4
11 2
12 2
13 1
14 1
15 2
16 4
17 2
18 2
19 1
20 1
21 6
22 2
23 4
24 2
25 2
26 1
27 1
28 4
29 6
30 2
31 4
32 2
33 2
34 1
35 1
36 6
37 4
38 6
39 2
40 4
41 2
42 2
43 1
44 1
45 4
46 6
47 4
48 6
49 2
50 4
51 2
52 2
53 1
54 1
55 10
56 4
57 6
58 4
59 6
60 2
61 4
62 2
63 2
64 1
65 1
66 4
67 10
68 4
69 6
70 4
71 6
72 2
73 4
74 2
75 2
76 1
77 1
78 12
79 4
80 10
81 4
82 6
83 4
84 6
85 2
86 4
87 2
88 2
89 1
90 1
91 6
92 12
93 4
94 10
95 4
96 6
97 4
98 6
99 2
100 4
101 2
102 2
103 1
104 1

List of values

[1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 4, 2, 2, 1, 1, 2, 4, 2, 2, 1, 1, 6, 2, 4, 2, 2, 1, 1, 4, 6, 2, 4, 2, 2, 1, 1, 6, 4, 6, 2, 4, 2, 2, 1, 1, 4, 6, 4, 6, 2, 4, 2, 2, 1, 1, 10, 4, 6, 4, 6, 2, 4, 2, 2, 1, 1, 4, 10, 4, 6, 4, 6, 2, 4, 2, 2, 1, 1, 12, 4, 10, 4, 6, 4, 6, 2, 4, 2, 2, 1, 1, 6, 12, 4, 10, 4, 6, 4, 6, 2, 4, 2, 2, 1, 1]