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.

A180173 a(n) = gcd(prime(n)-2, n).

Table of values

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

List of values

[1, 1, 3, 1, 1, 1, 1, 1, 3, 1, 1, 1, 13, 1, 15, 1, 1, 1, 1, 1, 1, 11, 1, 3, 5, 1, 1, 7, 1, 3, 1, 1, 3, 1, 7, 1, 1, 1, 3, 1, 1, 1, 1, 1, 15, 1, 1, 1, 1, 1, 3, 1, 1, 3, 5, 1, 3, 1, 1, 3, 1, 1, 1, 1, 1, 3, 1, 1, 69, 1, 1, 3, 73, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 3]