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.

A179186 Numbers k such that phi(k) = phi(k+4), with Euler's totient function phi = A000010.

Table of values

n a(n)
1 8
2 14
3 16
4 20
5 35
6 52
7 64
8 91
9 140
10 148
11 244
12 292
13 403
14 455
15 616
16 628
17 772
18 801
19 1011
20 1024
21 1108
22 1144
23 1252
24 1270
25 1295
26 1456
27 1588
28 1684
29 1820
30 1828
31 2030
32 2164
33 2452
34 2623
35 2644
36 2660
37 2692
38 2932
39 3028
40 3216
41 3321
42 3508
43 3988
44 4264
45 4340
46 4372
47 4612
48 4804
49 4852
50 4948

List of values

[8, 14, 16, 20, 35, 52, 64, 91, 140, 148, 244, 292, 403, 455, 616, 628, 772, 801, 1011, 1024, 1108, 1144, 1252, 1270, 1295, 1456, 1588, 1684, 1820, 1828, 2030, 2164, 2452, 2623, 2644, 2660, 2692, 2932, 3028, 3216, 3321, 3508, 3988, 4264, 4340, 4372, 4612, 4804, 4852, 4948]