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.

A173328 Numbers k such that phi(tau(k)) = tau(sopf(k)).

Table of values

n a(n)
1 4
2 6
3 8
4 9
5 10
6 12
7 18
8 20
9 22
10 25
11 27
12 30
13 32
14 34
15 44
16 49
17 50
18 58
19 60
20 68
21 70
22 82
23 90
24 102
25 104
26 105
27 116
28 118
29 121
30 125
31 135
32 140
33 142
34 150
35 152
36 164
37 169
38 174
39 182
40 189
41 190
42 195
43 202
44 204
45 208
46 214
47 231
48 236
49 238
50 242
51 243
52 246
53 248
54 252
55 274
56 284
57 285
58 286

List of values

[4, 6, 8, 9, 10, 12, 18, 20, 22, 25, 27, 30, 32, 34, 44, 49, 50, 58, 60, 68, 70, 82, 90, 102, 104, 105, 116, 118, 121, 125, 135, 140, 142, 150, 152, 164, 169, 174, 182, 189, 190, 195, 202, 204, 208, 214, 231, 236, 238, 242, 243, 246, 248, 252, 274, 284, 285, 286]