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.

A254981 a(n) is the sum of the divisors d of n such that n/d is cubefree.

Table of values

n a(n)
1 1
2 3
3 4
4 7
5 6
6 12
7 8
8 14
9 13
10 18
11 12
12 28
13 14
14 24
15 24
16 28
17 18
18 39
19 20
20 42
21 32
22 36
23 24
24 56
25 31
26 42
27 39
28 56
29 30
30 72
31 32
32 56
33 48
34 54
35 48
36 91
37 38
38 60
39 56
40 84
41 42
42 96
43 44
44 84
45 78
46 72
47 48
48 112
49 57
50 93
51 72
52 98
53 54
54 117
55 72
56 112
57 80
58 90
59 60
60 168
61 62
62 96
63 104
64 112
65 84
66 144

List of values

[1, 3, 4, 7, 6, 12, 8, 14, 13, 18, 12, 28, 14, 24, 24, 28, 18, 39, 20, 42, 32, 36, 24, 56, 31, 42, 39, 56, 30, 72, 32, 56, 48, 54, 48, 91, 38, 60, 56, 84, 42, 96, 44, 84, 78, 72, 48, 112, 57, 93, 72, 98, 54, 117, 72, 112, 80, 90, 60, 168, 62, 96, 104, 112, 84, 144]

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

Content is available under The OEIS End-User License Agreement.