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.

A130029 a(n) = Sum_{d|n} phi(n/d) * prime(d).

Table of values

n a(n)
1 2
2 5
3 9
4 14
5 19
6 28
7 29
8 40
9 45
10 60
11 51
12 88
13 65
14 90
15 105
16 114
17 91
18 150
19 103
20 178
21 161
22 160
23 127
24 252
25 181
26 202
27 215
28 268
29 165
30 352
31 187
32 306
33 289
34 278
35 331
36 462
37 229
38 320
39 357
40 506
41 259
42 542
43 275
44 474
45 537
46 392
47 303
48 706
49 413
50 586
51 495
52 590
53 345
54 720
55 571
56 764
57 565
58 520

List of values

[2, 5, 9, 14, 19, 28, 29, 40, 45, 60, 51, 88, 65, 90, 105, 114, 91, 150, 103, 178, 161, 160, 127, 252, 181, 202, 215, 268, 165, 352, 187, 306, 289, 278, 331, 462, 229, 320, 357, 506, 259, 542, 275, 474, 537, 392, 303, 706, 413, 586, 495, 590, 345, 720, 571, 764, 565, 520]