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.

A056691 Number of divisors d of n with gcd(d+1, n) = 1.

Table of values

n a(n)
1 1
2 1
3 2
4 2
5 2
6 1
7 2
8 3
9 3
10 2
11 2
12 3
13 2
14 2
15 3
16 4
17 2
18 2
19 2
20 3
21 4
22 2
23 2
24 4
25 3
26 2
27 4
28 4
29 2
30 3
31 2
32 5
33 3
34 2
35 4
36 5
37 2
38 2
39 4
40 5
41 2
42 1
43 2
44 4
45 4
46 2
47 2
48 6
49 3
50 3
51 3
52 4
53 2
54 3
55 4
56 6
57 4
58 2
59 2
60 5
61 2
62 2
63 6
64 6
65 4
66 3
67 2
68 4
69 3
70 3
71 2
72 7
73 2
74 2
75 5
76 4
77 4
78 2
79 2
80 7
81 5
82 2
83 2
84 5
85 4
86 2
87 3
88 6
89 2
90 5
91 3
92 4
93 4
94 2
95 3
96 7
97 2
98 3
99 5
100 5
101 2
102 3
103 2
104 6
105 6

List of values

[1, 1, 2, 2, 2, 1, 2, 3, 3, 2, 2, 3, 2, 2, 3, 4, 2, 2, 2, 3, 4, 2, 2, 4, 3, 2, 4, 4, 2, 3, 2, 5, 3, 2, 4, 5, 2, 2, 4, 5, 2, 1, 2, 4, 4, 2, 2, 6, 3, 3, 3, 4, 2, 3, 4, 6, 4, 2, 2, 5, 2, 2, 6, 6, 4, 3, 2, 4, 3, 3, 2, 7, 2, 2, 5, 4, 4, 2, 2, 7, 5, 2, 2, 5, 4, 2, 3, 6, 2, 5, 3, 4, 4, 2, 3, 7, 2, 3, 5, 5, 2, 3, 2, 6, 6]