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.

A344178 Difference between the arithmetic derivative of n and the cototient of n: a(n) = A003415(n) - A051953(n).

Table of values

n a(n)
1 0
2 0
3 0
4 2
5 0
6 1
7 0
8 8
9 3
10 1
11 0
12 8
13 0
14 1
15 1
16 24
17 0
18 9
19 0
20 12
21 1
22 1
23 0
24 28
25 5
26 1
27 18
28 16
29 0
30 9
31 0
32 64
33 1
34 1
35 1
36 36
37 0
38 1
39 1
40 44
41 0
42 11
43 0
44 24
45 18
46 1
47 0
48 80
49 7
50 15
51 1
52 28
53 0
54 45
55 1
56 60
57 1
58 1
59 0
60 48
61 0
62 1
63 24
64 160
65 1
66 15
67 0
68 36
69 1
70 13
71 0
72 108
73 0
74 1
75 20
76 40
77 1
78 17
79 0
80 128
81 81
82 1
83 0
84 64
85 1
86 1
87 1
88 92
89 0
90 57
91 1
92 48
93 1
94 1
95 1
96 208

List of values

[0, 0, 0, 2, 0, 1, 0, 8, 3, 1, 0, 8, 0, 1, 1, 24, 0, 9, 0, 12, 1, 1, 0, 28, 5, 1, 18, 16, 0, 9, 0, 64, 1, 1, 1, 36, 0, 1, 1, 44, 0, 11, 0, 24, 18, 1, 0, 80, 7, 15, 1, 28, 0, 45, 1, 60, 1, 1, 0, 48, 0, 1, 24, 160, 1, 15, 0, 36, 1, 13, 0, 108, 0, 1, 20, 40, 1, 17, 0, 128, 81, 1, 0, 64, 1, 1, 1, 92, 0, 57, 1, 48, 1, 1, 1, 208]