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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.

A093394 a(n) is the GCD of n and the product of the anti-divisors of n.

Table of values

n a(n)
3 1
4 1
5 1
6 2
7 1
8 1
9 3
10 2
11 1
12 4
13 1
14 2
15 15
16 1
17 1
18 6
19 1
20 4
21 21
22 2
23 1
24 8
25 5
26 2
27 27
28 4
29 1
30 30
31 1
32 1
33 33
34 2
35 35
36 12
37 1
38 2
39 39
40 8
41 1
42 42
43 1
44 4
45 45
46 2
47 1
48 16
49 7
50 10
51 51
52 4
53 1
54 54
55 55
56 8
57 57
58 2
59 1
60 60
61 1
62 2
63 63
64 1
65 65
66 66
67 1
68 4
69 69
70 70
71 1
72 24
73 1
74 2
75 75
76 4

List of values

[1, 1, 1, 2, 1, 1, 3, 2, 1, 4, 1, 2, 15, 1, 1, 6, 1, 4, 21, 2, 1, 8, 5, 2, 27, 4, 1, 30, 1, 1, 33, 2, 35, 12, 1, 2, 39, 8, 1, 42, 1, 4, 45, 2, 1, 16, 7, 10, 51, 4, 1, 54, 55, 8, 57, 2, 1, 60, 1, 2, 63, 1, 65, 66, 1, 4, 69, 70, 1, 24, 1, 2, 75, 4]

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