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.

A263647 Numbers k such that 2^k-1 and 3^k-1 are coprime.

Table of values

n a(n)
1 1
2 2
3 3
4 5
5 7
6 9
7 13
8 14
9 15
10 17
11 19
12 21
13 25
14 26
15 27
16 29
17 31
18 34
19 37
20 38
21 39
22 41
23 45
24 47
25 49
26 51
27 53
28 57
29 59
30 61
31 62
32 63
33 65
34 67
35 71
36 73
37 74
38 79
39 81
40 85
41 87
42 89
43 91
44 93
45 94
46 97
47 98
48 101
49 103
50 107
51 109
52 111
53 113
54 118
55 122
56 123
57 125
58 127
59 133
60 134
61 135
62 137
63 139
64 141
65 142
66 145
67 147
68 149
69 151
70 153
71 157
72 158
73 159
74 163
75 167
76 169
77 171

List of values

[1, 2, 3, 5, 7, 9, 13, 14, 15, 17, 19, 21, 25, 26, 27, 29, 31, 34, 37, 38, 39, 41, 45, 47, 49, 51, 53, 57, 59, 61, 62, 63, 65, 67, 71, 73, 74, 79, 81, 85, 87, 89, 91, 93, 94, 97, 98, 101, 103, 107, 109, 111, 113, 118, 122, 123, 125, 127, 133, 134, 135, 137, 139, 141, 142, 145, 147, 149, 151, 153, 157, 158, 159, 163, 167, 169, 171]