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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.

A073503 Numbers n such that the number of solutions to x^4 == 1 (mod n) is twice the number of solutions of x^2 == 1 (mod n).

Table of values

n a(n)
1 5
2 10
3 13
4 15
5 16
6 17
7 20
8 25
9 26
10 29
11 30
12 32
13 34
14 35
15 37
16 39
17 40
18 41
19 45
20 48
21 50
22 51
23 52
24 53
25 55
26 58
27 60
28 61
29 64
30 68
31 70
32 73
33 74
34 75
35 78
36 82
37 87
38 89
39 90
40 91
41 95
42 96
43 97
44 100
45 101
46 102
47 104
48 105
49 106
50 109
51 110
52 111
53 112
54 113
55 115
56 116
57 117
58 119
59 120
60 122
61 123
62 125

List of values

[5, 10, 13, 15, 16, 17, 20, 25, 26, 29, 30, 32, 34, 35, 37, 39, 40, 41, 45, 48, 50, 51, 52, 53, 55, 58, 60, 61, 64, 68, 70, 73, 74, 75, 78, 82, 87, 89, 90, 91, 95, 96, 97, 100, 101, 102, 104, 105, 106, 109, 110, 111, 112, 113, 115, 116, 117, 119, 120, 122, 123, 125]

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

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