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.

A132953 a(n) is the sum of the isolated totatives of n.

Table of values

n a(n)
1 0
2 1
3 0
4 4
5 0
6 6
7 0
8 16
9 0
10 20
11 0
12 24
13 0
14 42
15 15
16 64
17 0
18 54
19 0
20 80
21 21
22 110
23 0
24 96
25 0
26 156
27 0
28 168
29 0
30 120
31 0
32 256
33 33
34 272
35 35
36 216
37 0
38 342
39 39
40 320
41 0
42 252
43 0
44 440
45 135
46 506
47 0
48 384
49 0
50 500
51 51
52 624
53 0
54 486
55 55
56 672
57 57
58 812
59 0
60 480
61 0
62 930
63 189
64 1024
65 65
66 660
67 0
68 1088
69 69

List of values

[0, 1, 0, 4, 0, 6, 0, 16, 0, 20, 0, 24, 0, 42, 15, 64, 0, 54, 0, 80, 21, 110, 0, 96, 0, 156, 0, 168, 0, 120, 0, 256, 33, 272, 35, 216, 0, 342, 39, 320, 0, 252, 0, 440, 135, 506, 0, 384, 0, 500, 51, 624, 0, 486, 55, 672, 57, 812, 0, 480, 0, 930, 189, 1024, 65, 660, 0, 1088, 69]