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.

A333976 Number of pairs of divisors of n, (d1,d2), such that d1 <= d2 and gcd(d1,d2) > 1.

Table of values

n a(n)
1 0
2 1
3 1
4 3
5 1
6 5
7 1
8 6
9 3
10 5
11 1
12 13
13 1
14 5
15 5
16 10
17 1
18 13
19 1
20 13
21 5
22 5
23 1
24 25
25 3
26 5
27 6
28 13
29 1
30 22
31 1
32 15
33 5
34 5
35 5
36 32
37 1
38 5
39 5
40 25
41 1
42 22
43 1
44 13
45 13
46 5
47 1
48 41
49 3
50 13
51 5
52 13
53 1
54 25
55 5
56 25
57 5
58 5
59 1
60 55
61 1
62 5
63 13
64 21
65 5
66 22
67 1
68 13
69 5
70 22
71 1
72 60
73 1
74 5
75 13
76 13
77 5
78 22
79 1
80 41
81 10

List of values

[0, 1, 1, 3, 1, 5, 1, 6, 3, 5, 1, 13, 1, 5, 5, 10, 1, 13, 1, 13, 5, 5, 1, 25, 3, 5, 6, 13, 1, 22, 1, 15, 5, 5, 5, 32, 1, 5, 5, 25, 1, 22, 1, 13, 13, 5, 1, 41, 3, 13, 5, 13, 1, 25, 5, 25, 5, 5, 1, 55, 1, 5, 13, 21, 5, 22, 1, 13, 5, 22, 1, 60, 1, 5, 13, 13, 5, 22, 1, 41, 10]