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.

A347231 Difference between A344695 [gcd(psi(n),sigma(n))] and its Möbius transform.

Table of values

n a(n)
1 0
2 1
3 1
4 3
5 1
6 6
7 1
8 1
9 4
10 8
11 1
12 10
13 1
14 10
15 9
16 3
17 1
18 9
19 1
20 16
21 11
22 14
23 1
24 6
25 6
26 16
27 1
28 22
29 1
30 42
31 1
32 1
33 15
34 20
35 13
36 -5
37 1
38 22
39 17
40 8
41 1
42 54
43 1
44 34
45 21
46 26
47 1
48 10
49 8
50 13
51 21
52 40
53 1
54 6
55 17
56 10
57 23
58 32
59 1
60 54
61 1
62 34
63 29
64 3
65 19
66 78
67 1
68 52
69 27
70 74
71 1
72 9
73 1
74 40
75 19
76 58
77 19
78 90
79 1
80 16
81 4
82 44
83 1
84 74
85 23
86 46
87 33
88 14
89 1
90 48

List of values

[0, 1, 1, 3, 1, 6, 1, 1, 4, 8, 1, 10, 1, 10, 9, 3, 1, 9, 1, 16, 11, 14, 1, 6, 6, 16, 1, 22, 1, 42, 1, 1, 15, 20, 13, -5, 1, 22, 17, 8, 1, 54, 1, 34, 21, 26, 1, 10, 8, 13, 21, 40, 1, 6, 17, 10, 23, 32, 1, 54, 1, 34, 29, 3, 19, 78, 1, 52, 27, 74, 1, 9, 1, 40, 19, 58, 19, 90, 1, 16, 4, 44, 1, 74, 23, 46, 33, 14, 1, 48]