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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.

A285896 Sum of divisors d of n such that n/d is not congruent to 0 mod 5.

Table of values

n a(n)
1 1
2 3
3 4
4 7
5 5
6 12
7 8
8 15
9 13
10 15
11 12
12 28
13 14
14 24
15 20
16 31
17 18
18 39
19 20
20 35
21 32
22 36
23 24
24 60
25 25
26 42
27 40
28 56
29 30
30 60
31 32
32 63
33 48
34 54
35 40
36 91
37 38
38 60
39 56
40 75
41 42
42 96
43 44
44 84
45 65
46 72
47 48
48 124
49 57
50 75
51 72
52 98
53 54
54 120
55 60
56 120
57 80
58 90
59 60
60 140
61 62
62 96
63 104
64 127
65 70
66 144

List of values

[1, 3, 4, 7, 5, 12, 8, 15, 13, 15, 12, 28, 14, 24, 20, 31, 18, 39, 20, 35, 32, 36, 24, 60, 25, 42, 40, 56, 30, 60, 32, 63, 48, 54, 40, 91, 38, 60, 56, 75, 42, 96, 44, 84, 65, 72, 48, 124, 57, 75, 72, 98, 54, 120, 60, 120, 80, 90, 60, 140, 62, 96, 104, 127, 70, 144]

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

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