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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.

A054713 Number of powers of 13 modulo n.

Table of values

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

List of values

[1, 1, 1, 1, 4, 1, 2, 2, 3, 4, 10, 1, 2, 2, 4, 4, 4, 3, 18, 4, 2, 10, 11, 2, 20, 2, 9, 2, 14, 4, 30, 8, 10, 4, 4, 3, 36, 18, 2, 4, 40, 2, 21, 10, 12, 11, 46, 4, 14, 20, 4, 2, 13, 9, 20, 2, 18, 14, 58, 4, 3, 30, 6, 16, 5, 10, 66, 4, 11, 4, 70, 6, 72, 36, 20, 18, 10, 2, 39, 4, 27, 40, 82, 2, 4]

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