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.

A065896 Number of composites <= 2*n.

Table of values

n a(n)
1 0
2 1
3 2
4 3
5 5
6 6
7 7
8 9
9 10
10 11
11 13
12 14
13 16
14 18
15 19
16 20
17 22
18 24
19 25
20 27
21 28
22 29
23 31
24 32
25 34
26 36
27 37
28 39
29 41
30 42
31 43
32 45
33 47
34 48
35 50
36 51
37 52
38 54
39 56
40 57
41 59
42 60
43 62
44 64
45 65
46 67
47 69
48 71
49 72
50 74
51 75
52 76
53 78
54 79
55 80
56 82
57 83
58 85
59 87
60 89
61 91
62 93
63 95
64 96
65 98
66 99
67 101
68 103
69 104
70 105

List of values

[0, 1, 2, 3, 5, 6, 7, 9, 10, 11, 13, 14, 16, 18, 19, 20, 22, 24, 25, 27, 28, 29, 31, 32, 34, 36, 37, 39, 41, 42, 43, 45, 47, 48, 50, 51, 52, 54, 56, 57, 59, 60, 62, 64, 65, 67, 69, 71, 72, 74, 75, 76, 78, 79, 80, 82, 83, 85, 87, 89, 91, 93, 95, 96, 98, 99, 101, 103, 104, 105]