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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.

A199593 Numbers n such that 3n-2, 3n-1 and 3n are all composite.

Table of values

n a(n)
1 9
2 12
3 17
4 19
5 22
6 26
7 29
8 31
9 32
10 39
11 40
12 41
13 42
14 45
15 48
16 49
17 52
18 54
19 57
20 59
21 62
22 63
23 68
24 69
25 70
26 72
27 73
28 74
29 79
30 82
31 83
32 85
33 87
34 89
35 92
36 96
37 97
38 99
39 100
40 101
41 102
42 107
43 108
44 109
45 110
46 112
47 114
48 115
49 119
50 121
51 122
52 124
53 126
54 129
55 131
56 132
57 135
58 136
59 138
60 139
61 142
62 143
63 146
64 149
65 151
66 152
67 157
68 158
69 159
70 161
71 162
72 165
73 166
74 169
75 171
76 172
77 173
78 176
79 177
80 178

List of values

[9, 12, 17, 19, 22, 26, 29, 31, 32, 39, 40, 41, 42, 45, 48, 49, 52, 54, 57, 59, 62, 63, 68, 69, 70, 72, 73, 74, 79, 82, 83, 85, 87, 89, 92, 96, 97, 99, 100, 101, 102, 107, 108, 109, 110, 112, 114, 115, 119, 121, 122, 124, 126, 129, 131, 132, 135, 136, 138, 139, 142, 143, 146, 149, 151, 152, 157, 158, 159, 161, 162, 165, 166, 169, 171, 172, 173, 176, 177, 178]