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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.

A183102 a(n) = product of powerful divisors d of n.

Table of values

n a(n)
1 1
2 1
3 1
4 4
5 1
6 1
7 1
8 32
9 9
10 1
11 1
12 4
13 1
14 1
15 1
16 512
17 1
18 9
19 1
20 4
21 1
22 1
23 1
24 32
25 25
26 1
27 243
28 4
29 1
30 1
31 1
32 16384
33 1
34 1
35 1
36 1296
37 1
38 1
39 1
40 32
41 1
42 1
43 1
44 4
45 9
46 1
47 1
48 512
49 49
50 25
51 1
52 4
53 1
54 243
55 1
56 32
57 1
58 1
59 1
60 4
61 1
62 1
63 9
64 1048576
65 1
66 1
67 1
68 4
69 1
70 1
71 1
72 746496
73 1

List of values

[1, 1, 1, 4, 1, 1, 1, 32, 9, 1, 1, 4, 1, 1, 1, 512, 1, 9, 1, 4, 1, 1, 1, 32, 25, 1, 243, 4, 1, 1, 1, 16384, 1, 1, 1, 1296, 1, 1, 1, 32, 1, 1, 1, 4, 9, 1, 1, 512, 49, 25, 1, 4, 1, 243, 1, 32, 1, 1, 1, 4, 1, 1, 9, 1048576, 1, 1, 1, 4, 1, 1, 1, 746496, 1]