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.

A322154 Numbers k satisfying gcd(k^2, sigma(k^2)) > sigma(k), where sigma is the sum-of-divisors function.

Table of values

n a(n)
1 693
2 1386
3 1463
4 1881
5 2379
6 2926
7 4389
8 4758
9 8778
10 9516
11 11895
12 13167
13 16653
14 18018
15 19032
16 23790
17 24180
18 25641
19 26169
20 26334
21 33306
22 37271
23 40443
24 43890
25 45201
26 52668
27 54717
28 57057
29 61380
30 65835
31 73150
32 78507
33 105336
34 109725
35 111813
36 114114
37 131670
38 157014
39 166530
40 169959

List of values

[693, 1386, 1463, 1881, 2379, 2926, 4389, 4758, 8778, 9516, 11895, 13167, 16653, 18018, 19032, 23790, 24180, 25641, 26169, 26334, 33306, 37271, 40443, 43890, 45201, 52668, 54717, 57057, 61380, 65835, 73150, 78507, 105336, 109725, 111813, 114114, 131670, 157014, 166530, 169959]