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.

A324648 a(n) = n - A318458(n), where A318458(n) is bitwise-AND of n and the sum of proper divisors of n (sigma(n)-n).

Table of values

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

List of values

[1, 2, 2, 4, 4, 0, 6, 8, 9, 2, 10, 12, 12, 4, 6, 16, 16, 2, 18, 0, 20, 16, 22, 24, 25, 10, 18, 0, 28, 20, 30, 32, 32, 34, 34, 0, 36, 32, 38, 8, 40, 8, 42, 4, 12, 36, 46, 48, 49, 16, 34, 16, 52, 52, 38, 56, 40, 26, 58, 16, 60, 28, 22, 64, 64, 0, 66, 68, 68, 4, 70, 0, 72, 66, 74, 12, 76, 4, 78, 16, 81, 82, 82, 80, 64, 80, 86, 0, 88]