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.

A362951 a(n) is the Hamming distance between the binary expansions of n and phi(n) where phi is the Euler totient function (A000010).

Table of values

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

List of values

[0, 2, 1, 2, 1, 1, 1, 2, 4, 3, 1, 1, 1, 1, 3, 2, 1, 2, 1, 3, 3, 3, 1, 1, 3, 3, 2, 1, 1, 3, 1, 2, 4, 3, 5, 2, 1, 3, 6, 3, 1, 3, 1, 3, 4, 3, 1, 1, 4, 3, 3, 3, 1, 2, 5, 1, 4, 3, 1, 3, 1, 1, 4, 2, 4, 4, 1, 3, 4, 5, 1, 2, 1, 5, 4, 3, 4, 4, 1, 3, 5, 5, 1, 3, 3, 5, 6]