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.

A337820 Array read by antidiagonals: T(n,k) (n >= 1, k >= 0) is the ratio (the number of nonnegative bases m < n such that m^k == m (mod n))/(the number of nonnegative bases m < n such that -m^k == m (mod n)).

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 3
9 1
10 1
11 1
12 2
13 1
14 1
15 1
16 1
17 5
18 1
19 3
20 1
21 1
22 1
23 3
24 1
25 3
26 1
27 1
28 1
29 1
30 7
31 1
32 1
33 1
34 3
35 1
36 1
37 1
38 4
39 1
40 3
41 1
42 3
43 1
44 1
45 1
46 1
47 9
48 1
49 3
50 1
51 5
52 1
53 3
54 1
55 1
56 1
57 5
58 1
59 5
60 1
61 3
62 1
63 3
64 1
65 1
66 1
67 1
68 11
69 1
70 3
71 1
72 3
73 1
74 1
75 1
76 3
77 1
78 1
79 1
80 6
81 1
82 1
83 1
84 5
85 1
86 3
87 1
88 3
89 1
90 1
91 1
92 1
93 13
94 1
95 3
96 1
97 3

List of values

[1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 2, 1, 1, 1, 1, 5, 1, 3, 1, 1, 1, 3, 1, 3, 1, 1, 1, 1, 7, 1, 1, 1, 3, 1, 1, 1, 4, 1, 3, 1, 3, 1, 1, 1, 1, 9, 1, 3, 1, 5, 1, 3, 1, 1, 1, 5, 1, 5, 1, 3, 1, 3, 1, 1, 1, 1, 11, 1, 3, 1, 3, 1, 1, 1, 3, 1, 1, 1, 6, 1, 1, 1, 5, 1, 3, 1, 3, 1, 1, 1, 1, 13, 1, 3, 1, 3]