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.

A245212 a(n) = n * tau(n) - Sum_{(d (d * tau(d)).

Table of values

n a(n)
1 1
2 3
3 5
4 7
5 9
6 13
7 13
8 15
9 20
10 25
11 21
12 25
13 25
14 37
15 43
16 31
17 33
18 46
19 37
20 53
21 63
22 61
23 45
24 41
25 64
26 73
27 74
28 81
29 57
30 95
31 61
32 63
33 103
34 97
35 115
36 70
37 73
38 109
39 123
40 101
41 81
42 147
43 85
44 137
45 166
46 133
47 93
48 57
49 132
50 170
51 163
52 165
53 105
54 154
55 187
56 161
57 183
58 169
59 117
60 131
61 121

List of values

[1, 3, 5, 7, 9, 13, 13, 15, 20, 25, 21, 25, 25, 37, 43, 31, 33, 46, 37, 53, 63, 61, 45, 41, 64, 73, 74, 81, 57, 95, 61, 63, 103, 97, 115, 70, 73, 109, 123, 101, 81, 147, 85, 137, 166, 133, 93, 57, 132, 170, 163, 165, 105, 154, 187, 161, 183, 169, 117, 131, 121]