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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.

A096533 Number of composite numbers not greater than the n-th composite number that divide at least one other number not greater than the n-th composite number.

Table of values

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

List of values

[0, 0, 1, 1, 1, 2, 2, 2, 3, 4, 5, 5, 5, 6, 6, 6, 6, 7, 8, 9, 9, 9, 9, 10, 10, 10, 11, 12, 13, 13, 13, 14, 14, 15, 15, 16, 17, 17, 18, 18, 18, 19, 19, 19, 20, 20, 21, 22, 22, 23, 24, 24, 24, 25, 25, 26, 27, 27, 27, 28, 28, 28, 28, 29, 30, 30, 31, 31, 31, 31, 32, 33, 33, 34, 35, 36]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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