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.

A229090 Numbers n such that sigma(n) mod n > antisigma(n) mod n, where sigma(n) = A000203(n) = sum of divisors of n, antisigma(n) = A024816(n) = sum of non-divisors of n.

Table of values

n a(n)
1 2
2 8
3 10
4 12
5 15
6 16
7 21
8 24
9 30
10 32
11 42
12 44
13 45
14 50
15 52
16 60
17 63
18 64
19 68
20 75
21 76
22 80
23 92
24 99
25 105
26 110
27 116
28 117
29 124
30 126
31 128
32 130
33 135
34 136
35 140
36 144
37 147
38 148
39 150
40 152
41 153
42 154
43 160
44 164
45 165
46 168
47 170
48 171
49 172
50 182
51 184
52 188
53 189
54 190
55 195
56 198
57 200

List of values

[2, 8, 10, 12, 15, 16, 21, 24, 30, 32, 42, 44, 45, 50, 52, 60, 63, 64, 68, 75, 76, 80, 92, 99, 105, 110, 116, 117, 124, 126, 128, 130, 135, 136, 140, 144, 147, 148, 150, 152, 153, 154, 160, 164, 165, 168, 170, 171, 172, 182, 184, 188, 189, 190, 195, 198, 200]