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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.

A385130 The sum of divisors of n whose maximum exponent in their prime factorization is even.

Table of values

n a(n)
1 1
2 1
3 1
4 5
5 1
6 1
7 1
8 5
9 10
10 1
11 1
12 17
13 1
14 1
15 1
16 21
17 1
18 28
19 1
20 25
21 1
22 1
23 1
24 17
25 26
26 1
27 10
28 33
29 1
30 1
31 1
32 21
33 1
34 1
35 1
36 80
37 1
38 1
39 1
40 25
41 1
42 1
43 1
44 49
45 55
46 1
47 1
48 81
49 50
50 76
51 1
52 57
53 1
54 28
55 1
56 33
57 1
58 1
59 1
60 97
61 1
62 1
63 73
64 85
65 1
66 1
67 1
68 73
69 1
70 1
71 1
72 80
73 1
74 1
75 101
76 81
77 1
78 1

List of values

[1, 1, 1, 5, 1, 1, 1, 5, 10, 1, 1, 17, 1, 1, 1, 21, 1, 28, 1, 25, 1, 1, 1, 17, 26, 1, 10, 33, 1, 1, 1, 21, 1, 1, 1, 80, 1, 1, 1, 25, 1, 1, 1, 49, 55, 1, 1, 81, 50, 76, 1, 57, 1, 28, 1, 33, 1, 1, 1, 97, 1, 1, 73, 85, 1, 1, 1, 73, 1, 1, 1, 80, 1, 1, 101, 81, 1, 1]

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