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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.

A338935 a(n) = Sum_{d|n} (d^2 mod n).

Table of values

n a(n)
1 0
2 1
3 1
4 1
5 1
6 8
7 1
8 5
9 1
10 10
11 1
12 18
13 1
14 12
15 20
16 5
17 1
18 23
19 1
20 26
21 17
22 16
23 1
24 58
25 1
26 18
27 10
28 42
29 1
30 70
31 1
32 21
33 32
34 22
35 40
36 39
37 1
38 24
39 23
40 90
41 1
42 106
43 1
44 54
45 71
46 28
47 1
48 98
49 1
50 55
51 44
52 34
53 1
54 104
55 37
56 106
57 29
58 34
59 1
60 240
61 1
62 36
63 77
64 21
65 65
66 160
67 1
68 38
69 56
70 200
71 1
72 175
73 1
74 42
75 60
76 78
77 94
78 154
79 1
80 146

List of values

[0, 1, 1, 1, 1, 8, 1, 5, 1, 10, 1, 18, 1, 12, 20, 5, 1, 23, 1, 26, 17, 16, 1, 58, 1, 18, 10, 42, 1, 70, 1, 21, 32, 22, 40, 39, 1, 24, 23, 90, 1, 106, 1, 54, 71, 28, 1, 98, 1, 55, 44, 34, 1, 104, 37, 106, 29, 34, 1, 240, 1, 36, 77, 21, 65, 160, 1, 38, 56, 200, 1, 175, 1, 42, 60, 78, 94, 154, 1, 146]