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.

A210500 Number of even solutions to phi(k) = prime(n) - 1.

Table of values

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

List of values

[1, 2, 3, 2, 1, 4, 5, 2, 1, 1, 1, 5, 6, 2, 1, 1, 1, 5, 1, 1, 11, 1, 1, 4, 13, 2, 1, 1, 5, 4, 1, 1, 1, 1, 1, 1, 4, 2, 1, 1, 1, 5, 1, 17, 1, 1, 1, 1, 1, 1, 4, 1, 21, 1, 9, 1, 1, 1, 5, 5, 1, 1, 1, 1, 10, 1, 1, 13, 1, 3, 9, 1, 1, 1, 1, 1, 1, 7, 9, 4, 1, 7, 1, 23, 1, 1, 9]