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.

A116047 n+phi(n)+phi(phi(n)) is a brilliant number (A078972).

Table of values

n a(n)
1 2
2 3
3 6
4 7
5 8
6 11
7 73
8 91
9 93
10 105
11 109
12 119
13 127
14 151
15 157
16 185
17 195
18 209
19 223
20 225
21 229
22 249
23 289
24 303
25 325
26 355
27 371
28 385
29 395
30 397
31 401
32 417
33 473
34 495
35 545
36 559
37 589
38 641
39 665
40 673
41 681
42 699
43 709
44 779
45 795
46 815
47 821
48 901
49 905
50 1007
51 1041
52 1061
53 1065

List of values

[2, 3, 6, 7, 8, 11, 73, 91, 93, 105, 109, 119, 127, 151, 157, 185, 195, 209, 223, 225, 229, 249, 289, 303, 325, 355, 371, 385, 395, 397, 401, 417, 473, 495, 545, 559, 589, 641, 665, 673, 681, 699, 709, 779, 795, 815, 821, 901, 905, 1007, 1041, 1061, 1065]

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

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