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.

A340143 Möbius transform of A160595, where A160595(x) = phi(x)/gcd(phi(x), x-1).

Table of values

n a(n)
1 1
2 0
3 0
4 1
5 0
6 1
7 0
8 2
9 2
10 3
11 0
12 1
13 0
14 5
15 3
16 4
17 0
18 2
19 0
20 3
21 2
22 9
23 0
24 2
25 4
26 11
27 6
28 -3
29 0
30 0
31 0
32 8
33 4
34 15
35 11
36 4
37 0
38 17
39 11
40 6
41 0
42 3
43 0
44 9
45 0
46 21
47 0
48 4
49 6
50 12
51 15
52 -5
53 0
54 6
55 19
56 18
57 8
58 27
59 0
60 3
61 0
62 29
63 13
64 16
65 2
66 -11
67 0
68 15
69 10
70 -12
71 0
72 8
73 0
74 35
75 12
76 -7
77 14
78 0
79 0
80 12
81 18
82 39
83 0
84 13
85 15
86 41
87 27
88 18
89 0
90 12
91 3
92 21
93 14
94 45
95 35

List of values

[1, 0, 0, 1, 0, 1, 0, 2, 2, 3, 0, 1, 0, 5, 3, 4, 0, 2, 0, 3, 2, 9, 0, 2, 4, 11, 6, -3, 0, 0, 0, 8, 4, 15, 11, 4, 0, 17, 11, 6, 0, 3, 0, 9, 0, 21, 0, 4, 6, 12, 15, -5, 0, 6, 19, 18, 8, 27, 0, 3, 0, 29, 13, 16, 2, -11, 0, 15, 10, -12, 0, 8, 0, 35, 12, -7, 14, 0, 0, 12, 18, 39, 0, 13, 15, 41, 27, 18, 0, 12, 3, 21, 14, 45, 35]