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.

A330899 Numbers m such that (1/m) * Sum_{k=1..m} sigma(k)/k sets a record value, where sigma(k) is the sum of divisors of k.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 6
6 8
7 10
8 12
9 16
10 18
11 20
12 22
13 24
14 28
15 30
16 36
17 42
18 48
19 56
20 60
21 72
22 84
23 90
24 96
25 100
26 108
27 112
28 120
29 144
30 156
31 168
32 180
33 192
34 210
35 240
36 276
37 280
38 288
39 300
40 312
41 324
42 330
43 336
44 360
45 396
46 408
47 420
48 480
49 528
50 540
51 576
52 600
53 630
54 660
55 672
56 720
57 756
58 792

List of values

[1, 2, 3, 4, 6, 8, 10, 12, 16, 18, 20, 22, 24, 28, 30, 36, 42, 48, 56, 60, 72, 84, 90, 96, 100, 108, 112, 120, 144, 156, 168, 180, 192, 210, 240, 276, 280, 288, 300, 312, 324, 330, 336, 360, 396, 408, 420, 480, 528, 540, 576, 600, 630, 660, 672, 720, 756, 792]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.