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.

A073349 Numbers m such that sigma(m)/m is equal to sigma(k)/k for some k being superabundant (A004394).

Table of values

n a(n)
1 1
2 2
3 4
4 6
5 12
6 24
7 28
8 36
9 48
10 60
11 120
12 180
13 234
14 240
15 360
16 496
17 600
18 672
19 720
20 840
21 1170
22 1260
23 1680
24 1800
25 2016
26 2520
27 4200
28 5040
29 8128
30 10080
31 12600
32 15120
33 22320
34 25200
35 27000
36 27720
37 37800
38 55440
39 55800
40 55860
41 110880
42 138600
43 166320
44 167580
45 277200

List of values

[1, 2, 4, 6, 12, 24, 28, 36, 48, 60, 120, 180, 234, 240, 360, 496, 600, 672, 720, 840, 1170, 1260, 1680, 1800, 2016, 2520, 4200, 5040, 8128, 10080, 12600, 15120, 22320, 25200, 27000, 27720, 37800, 55440, 55800, 55860, 110880, 138600, 166320, 167580, 277200]

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

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