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.

A284721 Smallest odd prime that is relatively prime to 2n+1.

Table of values

n a(n)
0 3
1 5
2 3
3 3
4 5
5 3
6 3
7 7
8 3
9 3
10 5
11 3
12 3
13 5
14 3
15 3
16 5
17 3
18 3
19 5
20 3
21 3
22 7
23 3
24 3
25 5
26 3
27 3
28 5
29 3
30 3
31 5
32 3
33 3
34 5
35 3
36 3
37 7
38 3
39 3
40 5
41 3
42 3
43 5
44 3
45 3
46 5
47 3
48 3
49 5
50 3
51 3
52 11
53 3
54 3
55 5
56 3
57 3
58 5
59 3
60 3
61 5
62 3
63 3
64 5
65 3
66 3
67 7
68 3
69 3
70 5
71 3
72 3
73 5
74 3
75 3
76 5
77 3
78 3
79 5
80 3
81 3
82 7
83 3
84 3
85 5
86 3
87 3
88 5
89 3
90 3
91 5
92 3
93 3
94 5
95 3
96 3
97 7
98 3
99 3
100 5

List of values

[3, 5, 3, 3, 5, 3, 3, 7, 3, 3, 5, 3, 3, 5, 3, 3, 5, 3, 3, 5, 3, 3, 7, 3, 3, 5, 3, 3, 5, 3, 3, 5, 3, 3, 5, 3, 3, 7, 3, 3, 5, 3, 3, 5, 3, 3, 5, 3, 3, 5, 3, 3, 11, 3, 3, 5, 3, 3, 5, 3, 3, 5, 3, 3, 5, 3, 3, 7, 3, 3, 5, 3, 3, 5, 3, 3, 5, 3, 3, 5, 3, 3, 7, 3, 3, 5, 3, 3, 5, 3, 3, 5, 3, 3, 5, 3, 3, 7, 3, 3, 5]