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.

A332618 a(n) = Sum_{d|n} lcm(d, n/d) / gcd(d, n/d).

Table of values

n a(n)
1 1
2 4
3 6
4 9
5 10
6 24
7 14
8 20
9 19
10 40
11 22
12 54
13 26
14 56
15 60
16 41
17 34
18 76
19 38
20 90
21 84
22 88
23 46
24 120
25 51
26 104
27 60
28 126
29 58
30 240
31 62
32 84
33 132
34 136
35 140
36 171
37 74
38 152
39 156
40 200
41 82
42 336
43 86
44 198
45 190
46 184
47 94
48 246
49 99
50 204
51 204
52 234
53 106
54 240
55 220
56 280
57 228
58 232
59 118
60 540

List of values

[1, 4, 6, 9, 10, 24, 14, 20, 19, 40, 22, 54, 26, 56, 60, 41, 34, 76, 38, 90, 84, 88, 46, 120, 51, 104, 60, 126, 58, 240, 62, 84, 132, 136, 140, 171, 74, 152, 156, 200, 82, 336, 86, 198, 190, 184, 94, 246, 99, 204, 204, 234, 106, 240, 220, 280, 228, 232, 118, 540]