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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.

A228374 Numbers n such that 2*prime(n) - prime(n+1) is not prime.

Table of values

n a(n)
1 1
2 2
3 5
4 6
5 7
6 8
7 10
8 11
9 12
10 13
11 14
12 17
13 18
14 19
15 20
16 22
17 23
18 24
19 25
20 26
21 27
22 28
23 29
24 30
25 31
26 32
27 33
28 34
29 35
30 36
31 38
32 39
33 41
34 42
35 43
36 44
37 45
38 46
39 48
40 49
41 50
42 52
43 53
44 54
45 57
46 58
47 59
48 60
49 61
50 62
51 63
52 64
53 65
54 66
55 67
56 68
57 69
58 70
59 72
60 73
61 75
62 76
63 77
64 78
65 79
66 80
67 81
68 82

List of values

[1, 2, 5, 6, 7, 8, 10, 11, 12, 13, 14, 17, 18, 19, 20, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 38, 39, 41, 42, 43, 44, 45, 46, 48, 49, 50, 52, 53, 54, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 72, 73, 75, 76, 77, 78, 79, 80, 81, 82]

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

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