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.

A349130 a(n) = Sum_{d|n} d * A003958(n/d), where A003958 is fully multiplicative with a(p) = (p-1).

Table of values

n a(n)
1 1
2 3
3 5
4 7
5 9
6 15
7 13
8 15
9 19
10 27
11 21
12 35
13 25
14 39
15 45
16 31
17 33
18 57
19 37
20 63
21 65
22 63
23 45
24 75
25 61
26 75
27 65
28 91
29 57
30 135
31 61
32 63
33 105
34 99
35 117
36 133
37 73
38 111
39 125
40 135
41 81
42 195
43 85
44 147
45 171
46 135
47 93
48 155
49 127
50 183
51 165
52 175
53 105
54 195
55 189
56 195
57 185
58 171
59 117
60 315
61 121
62 183
63 247
64 127
65 225
66 315
67 133
68 231
69 225
70 351
71 141

List of values

[1, 3, 5, 7, 9, 15, 13, 15, 19, 27, 21, 35, 25, 39, 45, 31, 33, 57, 37, 63, 65, 63, 45, 75, 61, 75, 65, 91, 57, 135, 61, 63, 105, 99, 117, 133, 73, 111, 125, 135, 81, 195, 85, 147, 171, 135, 93, 155, 127, 183, 165, 175, 105, 195, 189, 195, 185, 171, 117, 315, 121, 183, 247, 127, 225, 315, 133, 231, 225, 351, 141]