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.

A053570 Sum of totient functions over arguments running through reduced residue system of n.

Table of values

n a(n)
1 1
2 1
3 2
4 3
5 6
6 5
7 12
8 13
9 18
10 15
11 32
12 21
13 46
14 35
15 42
16 49
17 80
18 49
19 102
20 71
21 88
22 85
23 150
24 89
25 156
26 125
27 164
28 137
29 242
30 113
31 278
32 213
33 230
34 217
35 272
36 191
37 396
38 275
39 320
40 261
41 490
42 237
43 542
44 369
45 386
46 401
47 650
48 355
49 640
50 431
51 560
52 507
53 830
54 449
55 704
56 551
57 696
58 643

List of values

[1, 1, 2, 3, 6, 5, 12, 13, 18, 15, 32, 21, 46, 35, 42, 49, 80, 49, 102, 71, 88, 85, 150, 89, 156, 125, 164, 137, 242, 113, 278, 213, 230, 217, 272, 191, 396, 275, 320, 261, 490, 237, 542, 369, 386, 401, 650, 355, 640, 431, 560, 507, 830, 449, 704, 551, 696, 643]