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.

A247136 Numbers for which the root mean square of nontrivial divisors is an integer.

Table of values

n a(n)
1 4
2 9
3 25
4 49
5 119
6 121
7 161
8 169
9 289
10 343
11 361
12 369
13 527
14 529
15 711
16 721
17 833
18 841
19 959
20 961
21 1081
22 1127
23 1241
24 1369
25 1681
26 1695
27 1767
28 1849
29 2047
30 2209
31 2809
32 3281
33 3335
34 3481
35 3553
36 3713
37 3721
38 4207
39 4489
40 4633
41 4681
42 5041
43 5047
44 5215
45 5329
46 6241
47 6713
48 6887

List of values

[4, 9, 25, 49, 119, 121, 161, 169, 289, 343, 361, 369, 527, 529, 711, 721, 833, 841, 959, 961, 1081, 1127, 1241, 1369, 1681, 1695, 1767, 1849, 2047, 2209, 2809, 3281, 3335, 3481, 3553, 3713, 3721, 4207, 4489, 4633, 4681, 5041, 5047, 5215, 5329, 6241, 6713, 6887]