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.

A218258 a(n) = |{m : multiplicative order of n mod m = 9}|.

Table of values

n a(n)
1 0
2 2
3 4
4 26
5 18
6 12
7 52
8 4
9 112
10 12
11 16
12 12
13 30
14 12
15 24
16 488
17 30
18 24
19 64
20 4
21 12
22 78
23 48
24 28
25 464
26 12
27 56
28 62
29 72
30 12
31 104
32 56
33 36
34 52
35 48
36 112
37 432
38 28
39 48
40 52
41 48
42 24
43 488
44 56
45 72
46 288
47 48
48 24
49 580
50 6
51 24
52 116
53 360
54 44
55 344
56 16
57 48
58 104
59 24
60 8
61 312
62 44
63 112

List of values

[0, 2, 4, 26, 18, 12, 52, 4, 112, 12, 16, 12, 30, 12, 24, 488, 30, 24, 64, 4, 12, 78, 48, 28, 464, 12, 56, 62, 72, 12, 104, 56, 36, 52, 48, 112, 432, 28, 48, 52, 48, 24, 488, 56, 72, 288, 48, 24, 580, 6, 24, 116, 360, 44, 344, 16, 48, 104, 24, 8, 312, 44, 112]