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.

A346758 a(n) = Sum_{d|n} mu(n/d) * floor(d^2/4).

Table of values

n a(n)
1 0
2 1
3 2
4 3
5 6
6 6
7 12
8 12
9 18
10 18
11 30
12 24
13 42
14 36
15 48
16 48
17 72
18 54
19 90
20 72
21 96
22 90
23 132
24 96
25 150
26 126
27 162
28 144
29 210
30 144
31 240
32 192
33 240
34 216
35 288
36 216
37 342
38 270
39 336
40 288
41 420
42 288
43 462
44 360
45 432
46 396
47 552
48 384
49 588
50 450
51 576
52 504
53 702
54 486
55 720
56 576
57 720
58 630
59 870
60 576
61 930

List of values

[0, 1, 2, 3, 6, 6, 12, 12, 18, 18, 30, 24, 42, 36, 48, 48, 72, 54, 90, 72, 96, 90, 132, 96, 150, 126, 162, 144, 210, 144, 240, 192, 240, 216, 288, 216, 342, 270, 336, 288, 420, 288, 462, 360, 432, 396, 552, 384, 588, 450, 576, 504, 702, 486, 720, 576, 720, 630, 870, 576, 930]