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.

A333046 a(1) = 1; a(n) = n * Sum_{d|n, d < n, gcd(d, n/d) = 1} a(d) / d.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 5
6 18
7 7
8 8
9 9
10 30
11 11
12 36
13 13
14 42
15 45
16 16
17 17
18 54
19 19
20 60
21 63
22 66
23 23
24 72
25 25
26 78
27 27
28 84
29 29
30 390
31 31
32 32
33 99
34 102
35 105
36 108
37 37
38 114
39 117
40 120
41 41
42 546
43 43
44 132
45 135
46 138
47 47
48 144
49 49
50 150
51 153
52 156
53 53
54 162
55 165
56 168
57 171
58 174
59 59
60 780
61 61
62 186
63 189
64 64
65 195

List of values

[1, 2, 3, 4, 5, 18, 7, 8, 9, 30, 11, 36, 13, 42, 45, 16, 17, 54, 19, 60, 63, 66, 23, 72, 25, 78, 27, 84, 29, 390, 31, 32, 99, 102, 105, 108, 37, 114, 117, 120, 41, 546, 43, 132, 135, 138, 47, 144, 49, 150, 153, 156, 53, 162, 165, 168, 171, 174, 59, 780, 61, 186, 189, 64, 195]