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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.

A300216 Numbers k such that k and phi(k) share the same prime signature.

Table of values

n a(n)
1 1
2 3
3 14
4 22
5 28
6 44
7 46
8 50
9 56
10 88
11 92
12 94
13 112
14 118
15 166
16 176
17 184
18 188
19 198
20 214
21 224
22 236
23 294
24 332
25 334
26 352
27 358
28 368
29 376
30 414
31 428
32 448
33 454
34 472
35 500
36 526
37 664
38 668
39 694
40 704
41 716
42 718
43 726
44 736
45 752
46 766
47 846
48 856
49 882
50 896
51 908
52 934
53 944
54 958
55 1006

List of values

[1, 3, 14, 22, 28, 44, 46, 50, 56, 88, 92, 94, 112, 118, 166, 176, 184, 188, 198, 214, 224, 236, 294, 332, 334, 352, 358, 368, 376, 414, 428, 448, 454, 472, 500, 526, 664, 668, 694, 704, 716, 718, 726, 736, 752, 766, 846, 856, 882, 896, 908, 934, 944, 958, 1006]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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