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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.

A241476 Least positive primitive root g < prime(n) modulo prime(n) with g - 1 a square, or 0 if such a number g does not exist.

Table of values

n a(n)
1 1
2 2
3 2
4 5
5 2
6 2
7 5
8 2
9 5
10 2
11 17
12 2
13 17
14 5
15 5
16 2
17 2
18 2
19 2
20 65
21 5
22 37
23 2
24 26
25 5
26 2
27 5
28 2
29 10
30 5
31 65
32 2
33 5
34 2
35 2
36 82
37 5
38 2
39 5
40 2
41 2
42 2
43 101
44 5
45 2
46 170
47 2
48 5
49 2
50 10
51 5
52 26
53 37
54 26
55 5
56 5
57 2
58 26
59 5
60 26
61 5
62 2
63 5
64 17
65 10
66 2
67 37
68 10
69 2
70 2
71 5
72 26
73 10
74 2
75 2
76 5
77 2
78 5
79 17
80 26

List of values

[1, 2, 2, 5, 2, 2, 5, 2, 5, 2, 17, 2, 17, 5, 5, 2, 2, 2, 2, 65, 5, 37, 2, 26, 5, 2, 5, 2, 10, 5, 65, 2, 5, 2, 2, 82, 5, 2, 5, 2, 2, 2, 101, 5, 2, 170, 2, 5, 2, 10, 5, 26, 37, 26, 5, 5, 2, 26, 5, 26, 5, 2, 5, 17, 10, 2, 37, 10, 2, 2, 5, 26, 10, 2, 2, 5, 2, 5, 17, 26]

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