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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.

A369894 a(n) = n * Sum_{p|n, p prime} tau(n/p) / p.

Table of values

n a(n)
1 0
2 1
3 1
4 4
5 1
6 10
7 1
8 12
9 6
10 14
11 1
12 36
13 1
14 18
15 16
16 32
17 1
18 51
19 1
20 52
21 20
22 26
23 1
24 104
25 10
26 30
27 27
28 68
29 1
30 124
31 1
32 80
33 28
34 38
35 24
36 180
37 1
38 42
39 32
40 152
41 1
42 164
43 1
44 100
45 87
46 50
47 1
48 272
49 14
50 115
51 40
52 116
53 1
54 216
55 32
56 200
57 44
58 62
59 1
60 432
61 1
62 66
63 111
64 192
65 36
66 244
67 1
68 148

List of values

[0, 1, 1, 4, 1, 10, 1, 12, 6, 14, 1, 36, 1, 18, 16, 32, 1, 51, 1, 52, 20, 26, 1, 104, 10, 30, 27, 68, 1, 124, 1, 80, 28, 38, 24, 180, 1, 42, 32, 152, 1, 164, 1, 100, 87, 50, 1, 272, 14, 115, 40, 116, 1, 216, 32, 200, 44, 62, 1, 432, 1, 66, 111, 192, 36, 244, 1, 148]

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

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