cp's OEIS Frontend

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.

A351395 Sum of the divisors of n that are either squarefree, prime powers, or both.

Table of values

n a(n)
1 1
2 3
3 4
4 7
5 6
6 12
7 8
8 15
9 13
10 18
11 12
12 16
13 14
14 24
15 24
16 31
17 18
18 21
19 20
20 22
21 32
22 36
23 24
24 24
25 31
26 42
27 40
28 28
29 30
30 72
31 32
32 63
33 48
34 54
35 48
36 25
37 38
38 60
39 56
40 30
41 42
42 96
43 44
44 40
45 33
46 72
47 48
48 40
49 57
50 43
51 72
52 46
53 54
54 48
55 72
56 36
57 80
58 90
59 60
60 76
61 62
62 96
63 41
64 127
65 84
66 144
67 68
68 58
69 96
70 144
71 72

List of values

[1, 3, 4, 7, 6, 12, 8, 15, 13, 18, 12, 16, 14, 24, 24, 31, 18, 21, 20, 22, 32, 36, 24, 24, 31, 42, 40, 28, 30, 72, 32, 63, 48, 54, 48, 25, 38, 60, 56, 30, 42, 96, 44, 40, 33, 72, 48, 40, 57, 43, 72, 46, 54, 48, 72, 36, 80, 90, 60, 76, 62, 96, 41, 127, 84, 144, 68, 58, 96, 144, 72]

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

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