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.

A099862 a(n) = (2*k)-th composite number; a bisection of A002808.

Table of values

n a(n)
1 6
2 9
3 12
4 15
5 18
6 21
7 24
8 26
9 28
10 32
11 34
12 36
13 39
14 42
15 45
16 48
17 50
18 52
19 55
20 57
21 60
22 63
23 65
24 68
25 70
26 74
27 76
28 78
29 81
30 84
31 86
32 88
33 91
34 93
35 95
36 98
37 100
38 104
39 106
40 110
41 112
42 115
43 117
44 119
45 121
46 123
47 125
48 128
49 130
50 133
51 135
52 138
53 141
54 143
55 145
56 147
57 150
58 153
59 155
60 158
61 160

List of values

[6, 9, 12, 15, 18, 21, 24, 26, 28, 32, 34, 36, 39, 42, 45, 48, 50, 52, 55, 57, 60, 63, 65, 68, 70, 74, 76, 78, 81, 84, 86, 88, 91, 93, 95, 98, 100, 104, 106, 110, 112, 115, 117, 119, 121, 123, 125, 128, 130, 133, 135, 138, 141, 143, 145, 147, 150, 153, 155, 158, 160]