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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.

A108514 If n is a power of 2, a(n)=n; otherwise a(n) = (p-1)*n/p where p = smallest odd prime divisor of n.

Table of values

n a(n)
1 1
2 2
3 2
4 4
5 4
6 4
7 6
8 8
9 6
10 8
11 10
12 8
13 12
14 12
15 10
16 16
17 16
18 12
19 18
20 16
21 14
22 20
23 22
24 16
25 20
26 24
27 18
28 24
29 28
30 20
31 30
32 32
33 22
34 32
35 28
36 24
37 36
38 36
39 26
40 32
41 40
42 28
43 42
44 40
45 30
46 44
47 46
48 32
49 42
50 40
51 34
52 48
53 52
54 36
55 44
56 48
57 38
58 56
59 58
60 40
61 60
62 60
63 42
64 64
65 52
66 44
67 66
68 64
69 46
70 56
71 70
72 48
73 72
74 72
75 50

List of values

[1, 2, 2, 4, 4, 4, 6, 8, 6, 8, 10, 8, 12, 12, 10, 16, 16, 12, 18, 16, 14, 20, 22, 16, 20, 24, 18, 24, 28, 20, 30, 32, 22, 32, 28, 24, 36, 36, 26, 32, 40, 28, 42, 40, 30, 44, 46, 32, 42, 40, 34, 48, 52, 36, 44, 48, 38, 56, 58, 40, 60, 60, 42, 64, 52, 44, 66, 64, 46, 56, 70, 48, 72, 72, 50]

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