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.

A317838 a(n) = Sum_{d|n} A002487(d).

Table of values

n a(n)
1 1
2 2
3 3
4 3
5 4
6 6
7 4
8 4
9 7
10 8
11 6
12 9
13 6
14 8
15 10
16 5
17 6
18 14
19 8
20 12
21 14
22 12
23 8
24 12
25 11
26 12
27 15
28 12
29 8
30 20
31 6
32 6
33 14
34 12
35 16
36 21
37 12
38 16
39 18
40 16
41 12
42 28
43 14
44 18
45 26
46 16
47 10
48 15
49 13
50 22
51 20
52 18
53 14
54 30
55 20
56 16
57 20
58 16
59 12
60 30
61 10
62 12
63 24
64 7
65 16
66 28
67 12
68 18
69 24
70 32
71 14
72 28
73 16
74 24
75 35
76 24
77 26
78 36
79 14
80 20
81 29
82 24
83 20
84 42
85 30
86 28
87 28
88 24

List of values

[1, 2, 3, 3, 4, 6, 4, 4, 7, 8, 6, 9, 6, 8, 10, 5, 6, 14, 8, 12, 14, 12, 8, 12, 11, 12, 15, 12, 8, 20, 6, 6, 14, 12, 16, 21, 12, 16, 18, 16, 12, 28, 14, 18, 26, 16, 10, 15, 13, 22, 20, 18, 14, 30, 20, 16, 20, 16, 12, 30, 10, 12, 24, 7, 16, 28, 12, 18, 24, 32, 14, 28, 16, 24, 35, 24, 26, 36, 14, 20, 29, 24, 20, 42, 30, 28, 28, 24]