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.

A180172 a(n) = gcd(prime(n)+2, n).

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 1
6 3
7 1
8 1
9 1
10 1
11 11
12 3
13 1
14 1
15 1
16 1
17 1
18 9
19 1
20 1
21 3
22 1
23 1
24 1
25 1
26 1
27 3
28 1
29 1
30 5
31 1
32 1
33 1
34 1
35 1
36 9
37 1
38 1
39 13
40 5
41 1
42 3
43 1
44 1
45 1
46 1
47 1
48 3
49 1
50 1
51 1
52 1
53 1
54 1
55 1
56 1
57 1
58 1
59 1
60 1
61 1
62 1
63 3
64 1
65 5
66 11
67 1
68 1
69 1
70 1
71 71
72 1
73 1
74 1
75 3
76 1
77 1
78 3
79 1
80 1
81 1
82 1
83 1
84 3
85 1
86 1
87 1
88 1
89 1
90 15
91 7
92 1
93 3
94 1
95 1
96 1
97 1
98 1
99 3
100 1
101 1
102 1
103 1

List of values

[1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 11, 3, 1, 1, 1, 1, 1, 9, 1, 1, 3, 1, 1, 1, 1, 1, 3, 1, 1, 5, 1, 1, 1, 1, 1, 9, 1, 1, 13, 5, 1, 3, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 5, 11, 1, 1, 1, 1, 71, 1, 1, 1, 3, 1, 1, 3, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 15, 7, 1, 3, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1]