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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.

A093074 Greatest prime factor of n and its direct neighbors.

Table of values

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

List of values

[2, 3, 3, 5, 5, 7, 7, 7, 5, 11, 11, 13, 13, 13, 7, 17, 17, 19, 19, 19, 11, 23, 23, 23, 13, 13, 13, 29, 29, 31, 31, 31, 17, 17, 17, 37, 37, 37, 19, 41, 41, 43, 43, 43, 23, 47, 47, 47, 7, 17, 17, 53, 53, 53, 11, 19, 29, 59, 59, 61, 61, 61, 31, 13, 13, 67, 67, 67, 23, 71, 71, 73]

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

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