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.

A090779 Numbers k that divide phi(k)^2.

Table of values

n a(n)
1 1
2 4
3 8
4 9
5 16
6 18
7 25
8 27
9 32
10 36
11 49
12 50
13 54
14 64
15 72
16 81
17 98
18 100
19 108
20 121
21 125
22 128
23 144
24 147
25 162
26 169
27 196
28 200
29 216
30 225
31 242
32 243
33 250
34 256
35 288
36 289
37 294
38 324
39 338
40 343
41 361
42 392
43 400
44 432
45 441
46 450
47 484
48 486
49 500
50 507
51 512
52 529
53 576
54 578
55 588
56 605
57 625

List of values

[1, 4, 8, 9, 16, 18, 25, 27, 32, 36, 49, 50, 54, 64, 72, 81, 98, 100, 108, 121, 125, 128, 144, 147, 162, 169, 196, 200, 216, 225, 242, 243, 250, 256, 288, 289, 294, 324, 338, 343, 361, 392, 400, 432, 441, 450, 484, 486, 500, 507, 512, 529, 576, 578, 588, 605, 625]