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.

A079536 a(n) = phi(n)*d(n) - sigma(n).

Table of values

n a(n)
1 0
2 -1
3 0
4 -1
5 2
6 -4
7 4
8 1
9 5
10 -2
11 8
12 -4
13 10
14 0
15 8
16 9
17 14
18 -3
19 16
20 6
21 16
22 4
23 20
24 4
25 29
26 6
27 32
28 16
29 26
30 -8
31 28
32 33
33 32
34 10
35 48
36 17
37 34
38 12
39 40
40 38
41 38
42 0
43 40
44 36
45 66
46 16
47 44
48 36
49 69
50 27
51 56
52 46
53 50
54 24
55 88
56 72
57 64
58 22
59 56
60 24
61 58
62 24
63 112
64 97
65 108
66 16
67 64
68 66
69 80
70 48
71 68
72 93
73 70
74 30
75 116
76 76
77 144

List of values

[0, -1, 0, -1, 2, -4, 4, 1, 5, -2, 8, -4, 10, 0, 8, 9, 14, -3, 16, 6, 16, 4, 20, 4, 29, 6, 32, 16, 26, -8, 28, 33, 32, 10, 48, 17, 34, 12, 40, 38, 38, 0, 40, 36, 66, 16, 44, 36, 69, 27, 56, 46, 50, 24, 88, 72, 64, 22, 56, 24, 58, 24, 112, 97, 108, 16, 64, 66, 80, 48, 68, 93, 70, 30, 116, 76, 144]