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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.

A068050 Number of values of k, 1<=k<=n, for which floor(n/k) is prime.

Table of values

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

List of values

[0, 1, 1, 1, 2, 2, 3, 2, 2, 4, 5, 3, 4, 5, 6, 5, 6, 5, 6, 6, 7, 9, 10, 6, 7, 9, 9, 9, 10, 10, 11, 9, 10, 12, 14, 11, 12, 13, 14, 13, 14, 13, 14, 14, 15, 17, 18, 13, 14, 16, 17, 18, 19, 17, 19, 18, 19, 21, 22, 18, 19, 20, 21, 19, 21, 22, 23, 23, 24, 26, 27, 21, 22, 23, 24, 24, 26, 27]

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