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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.

A322292 a(n) = Max_{c composite, c < n} (c + least prime factor of c).

Table of values

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

List of values

[6, 6, 8, 8, 10, 12, 12, 12, 14, 14, 16, 18, 18, 18, 20, 20, 22, 24, 24, 24, 26, 30, 30, 30, 30, 30, 32, 32, 34, 36, 36, 40, 40, 40, 40, 42, 42, 42, 44, 44, 46, 48, 48, 48, 50, 56, 56, 56, 56, 56, 56, 60, 60, 60, 60, 60, 62, 62, 64, 66, 66, 70, 70, 70, 70, 72, 72, 72]

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

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