cp's OEIS Frontend

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.

A103222 Real part of the totient function phi(n) for Gaussian integers. See A103223 for the imaginary part and A103224 for the norm.

Table of values

n a(n)
1 1
2 1
3 2
4 2
5 2
6 2
7 6
8 4
9 6
10 0
11 10
12 4
13 8
14 6
15 4
16 8
17 12
18 6
19 18
20 0
21 12
22 10
23 22
24 8
25 10
26 4
27 18
28 12
29 22
30 0
31 30
32 16
33 20
34 8
35 12
36 12
37 30
38 18
39 16
40 0
41 32
42 12
43 42
44 20
45 12
46 22
47 46
48 16
49 42
50 0
51 24
52 8
53 44
54 18
55 20
56 24
57 36
58 16
59 58
60 0
61 50
62 30
63 36
64 32
65 8
66 20
67 66
68 16
69 44
70 0
71 70
72 24
73 62
74 24
75 20
76 36
77 60
78 8
79 78
80 0

List of values

[1, 1, 2, 2, 2, 2, 6, 4, 6, 0, 10, 4, 8, 6, 4, 8, 12, 6, 18, 0, 12, 10, 22, 8, 10, 4, 18, 12, 22, 0, 30, 16, 20, 8, 12, 12, 30, 18, 16, 0, 32, 12, 42, 20, 12, 22, 46, 16, 42, 0, 24, 8, 44, 18, 20, 24, 36, 16, 58, 0, 50, 30, 36, 32, 8, 20, 66, 16, 44, 0, 70, 24, 62, 24, 20, 36, 60, 8, 78, 0]

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