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.

A190503 Numbers k such that sigma(phi(k)) divides sigma(k).

Table of values

n a(n)
1 1
2 2
3 6
4 12
5 14
6 22
7 24
8 28
9 44
10 46
11 48
12 56
13 68
14 87
15 88
16 92
17 94
18 96
19 112
20 118
21 166
22 174
23 176
24 184
25 188
26 192
27 214
28 224
29 236
30 332
31 334
32 352
33 358
34 362
35 368
36 376
37 384
38 390
39 410
40 428
41 448
42 454
43 472
44 526
45 664
46 668
47 694
48 704
49 716
50 718
51 736
52 752
53 766
54 768
55 856
56 896

List of values

[1, 2, 6, 12, 14, 22, 24, 28, 44, 46, 48, 56, 68, 87, 88, 92, 94, 96, 112, 118, 166, 174, 176, 184, 188, 192, 214, 224, 236, 332, 334, 352, 358, 362, 368, 376, 384, 390, 410, 428, 448, 454, 472, 526, 664, 668, 694, 704, 716, 718, 736, 752, 766, 768, 856, 896]