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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.

A336500 Number of divisors d|n with distinct prime multiplicities such that the quotient n/d also has distinct prime multiplicities.

Table of values

n a(n)
1 1
2 2
3 2
4 3
5 2
6 2
7 2
8 4
9 3
10 2
11 2
12 4
13 2
14 2
15 2
16 5
17 2
18 4
19 2
20 4
21 2
22 2
23 2
24 6
25 3
26 2
27 4
28 4
29 2
30 0
31 2
32 6
33 2
34 2
35 2
36 6
37 2
38 2
39 2
40 6
41 2
42 0
43 2
44 4
45 4
46 2
47 2
48 8
49 3
50 4
51 2
52 4
53 2
54 6
55 2
56 6
57 2
58 2
59 2
60 4
61 2
62 2
63 4
64 7
65 2
66 0
67 2
68 4
69 2
70 0
71 2
72 8
73 2
74 2
75 4
76 4
77 2
78 0
79 2
80 8
81 5
82 2
83 2
84 4
85 2
86 2
87 2

List of values

[1, 2, 2, 3, 2, 2, 2, 4, 3, 2, 2, 4, 2, 2, 2, 5, 2, 4, 2, 4, 2, 2, 2, 6, 3, 2, 4, 4, 2, 0, 2, 6, 2, 2, 2, 6, 2, 2, 2, 6, 2, 0, 2, 4, 4, 2, 2, 8, 3, 4, 2, 4, 2, 6, 2, 6, 2, 2, 2, 4, 2, 2, 4, 7, 2, 0, 2, 4, 2, 0, 2, 8, 2, 2, 4, 4, 2, 0, 2, 8, 5, 2, 2, 4, 2, 2, 2]

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