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.

A104275 Numbers k such that 2k-1 is not prime.

Table of values

n a(n)
1 1
2 5
3 8
4 11
5 13
6 14
7 17
8 18
9 20
10 23
11 25
12 26
13 28
14 29
15 32
16 33
17 35
18 38
19 39
20 41
21 43
22 44
23 46
24 47
25 48
26 50
27 53
28 56
29 58
30 59
31 60
32 61
33 62
34 63
35 65
36 67
37 68
38 71
39 72
40 73
41 74
42 77
43 78
44 80
45 81
46 83
47 85
48 86
49 88
50 89
51 92
52 93
53 94
54 95
55 98
56 101
57 102
58 103
59 104
60 105
61 107
62 108
63 109
64 110
65 111
66 113

List of values

[1, 5, 8, 11, 13, 14, 17, 18, 20, 23, 25, 26, 28, 29, 32, 33, 35, 38, 39, 41, 43, 44, 46, 47, 48, 50, 53, 56, 58, 59, 60, 61, 62, 63, 65, 67, 68, 71, 72, 73, 74, 77, 78, 80, 81, 83, 85, 86, 88, 89, 92, 93, 94, 95, 98, 101, 102, 103, 104, 105, 107, 108, 109, 110, 111, 113]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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