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.

A386596 a(n) = Sum_{d|n} d * pi(n/d).

Table of values

n a(n)
1 0
2 1
3 2
4 4
5 3
6 10
7 4
8 12
9 10
10 15
11 5
12 31
13 6
14 21
15 25
16 30
17 7
18 45
19 8
20 48
21 34
22 29
23 9
24 83
25 24
26 34
27 39
28 65
29 10
30 102
31 11
32 71
33 48
34 42
35 52
36 134
37 12
38 47
39 56
40 128
41 13
42 141
43 14
44 94
45 109
46 55
47 15
48 199
49 43
50 108
51 70
52 109
53 16
54 169
55 74
56 174
57 78
58 65
59 17
60 300
61 18
62 71
63 148
64 160
65 87
66 204
67 19
68 137
69 92
70 216
71 20
72 351
73 21
74 82
75 173
76 153
77 100
78 238
79 22
80 308
81 139
82 89
83 23
84 409
85 109
86 94
87 111

List of values

[0, 1, 2, 4, 3, 10, 4, 12, 10, 15, 5, 31, 6, 21, 25, 30, 7, 45, 8, 48, 34, 29, 9, 83, 24, 34, 39, 65, 10, 102, 11, 71, 48, 42, 52, 134, 12, 47, 56, 128, 13, 141, 14, 94, 109, 55, 15, 199, 43, 108, 70, 109, 16, 169, 74, 174, 78, 65, 17, 300, 18, 71, 148, 160, 87, 204, 19, 137, 92, 216, 20, 351, 21, 82, 173, 153, 100, 238, 22, 308, 139, 89, 23, 409, 109, 94, 111]