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.

A215509 Numerator of sigma(n)/n when n belongs to A162657.

Table of values

n a(n)
1 1
2 3
3 4
4 7
5 6
6 13
7 8
8 15
9 13
10 21
11 12
12 31
13 14
14 31
15 26
16 31
17 18
18 49
19 20
20 63
21 32
22 45
23 24
24 65
25 31
26 49
27 40
28 57
29 30
30 91
31 32
32 63
33 52
34 63
35 48
36 91
37 38
38 75
39 56
40 93
41 42
42 127
43 44
44 93
45 121
46 93
47 48
48 127
49 57
50 93
51 80
52 105
53 54
54 121
55 72
56 127
57 80
58 105
59 60
60 217
61 62
62 127
63 104

List of values

[1, 3, 4, 7, 6, 13, 8, 15, 13, 21, 12, 31, 14, 31, 26, 31, 18, 49, 20, 63, 32, 45, 24, 65, 31, 49, 40, 57, 30, 91, 32, 63, 52, 63, 48, 91, 38, 75, 56, 93, 42, 127, 44, 93, 121, 93, 48, 127, 57, 93, 80, 105, 54, 121, 72, 127, 80, 105, 60, 217, 62, 127, 104]