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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.

A071218 Numbers k such that the largest prime factor of the sum of the two consecutive primes prime(k) + prime(k+1) is at most k.

Table of values

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

List of values

[2, 3, 4, 5, 6, 7, 8, 10, 13, 14, 15, 16, 17, 18, 20, 21, 22, 25, 26, 27, 28, 30, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 52, 53, 55, 56, 57, 59, 60, 61, 62, 64, 65, 66, 68, 69, 70, 72, 73, 74, 78, 79, 80, 81, 82, 83, 85, 88, 89, 90, 91, 92, 94]

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

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