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A072190 Indices of primes with primitive root 2.

Table of values

n a(n)
1 2
2 3
3 5
4 6
5 8
6 10
7 12
8 16
9 17
10 18
11 19
12 23
13 26
14 28
15 32
16 34
17 35
18 38
19 40
20 41
21 42
22 45
23 47
24 49
25 57
26 62
27 66
28 69
29 70
30 74
31 75
32 77
33 81
34 82
35 86
36 89
37 91
38 94
39 97
40 99
41 100
42 101
43 102
44 103
45 107
46 112
47 114
48 119
49 120
50 121
51 123
52 126
53 127
54 134
55 137
56 138
57 139
58 142
59 144
60 145
61 147

List of values

[2, 3, 5, 6, 8, 10, 12, 16, 17, 18, 19, 23, 26, 28, 32, 34, 35, 38, 40, 41, 42, 45, 47, 49, 57, 62, 66, 69, 70, 74, 75, 77, 81, 82, 86, 89, 91, 94, 97, 99, 100, 101, 102, 103, 107, 112, 114, 119, 120, 121, 123, 126, 127, 134, 137, 138, 139, 142, 144, 145, 147]