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.

A336378 Numbers k such that gcd(k, prime(k-1) + prime(k+1)) = 1.

Table of values

n a(n)
1 2
2 3
3 7
4 13
5 17
6 19
7 23
8 27
9 29
10 31
11 37
12 41
13 43
14 45
15 47
16 49
17 53
18 55
19 59
20 61
21 63
22 65
23 67
24 69
25 71
26 73
27 77
28 79
29 81
30 83
31 85
32 89
33 91
34 93
35 95
36 97
37 101
38 103
39 107
40 109
41 111
42 113
43 117
44 119
45 121
46 125
47 127
48 131
49 133
50 135
51 137
52 139
53 141
54 143
55 145
56 147
57 149
58 151
59 157

List of values

[2, 3, 7, 13, 17, 19, 23, 27, 29, 31, 37, 41, 43, 45, 47, 49, 53, 55, 59, 61, 63, 65, 67, 69, 71, 73, 77, 79, 81, 83, 85, 89, 91, 93, 95, 97, 101, 103, 107, 109, 111, 113, 117, 119, 121, 125, 127, 131, 133, 135, 137, 139, 141, 143, 145, 147, 149, 151, 157]