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.

A362081 Numbers k achieving record abundance (sigma(k) > 2*k) via a residue-based measure M(k) (see Comments), analogous to superabundant numbers A004394.

Table of values

n a(n)
1 1
2 2
3 4
4 6
5 12
6 24
7 30
8 36
9 72
10 120
11 360
12 420
13 840
14 1680
15 2520
16 4032
17 5040
18 10080
19 25200
20 32760
21 65520
22 98280
23 194040
24 196560
25 388080
26 942480
27 1801800
28 3160080
29 3603600
30 6320160
31 12640320
32 24504480
33 53721360
34 61981920
35 73513440
36 115315200
37 122522400
38 189909720
39 192099600
40 214885440

List of values

[1, 2, 4, 6, 12, 24, 30, 36, 72, 120, 360, 420, 840, 1680, 2520, 4032, 5040, 10080, 25200, 32760, 65520, 98280, 194040, 196560, 388080, 942480, 1801800, 3160080, 3603600, 6320160, 12640320, 24504480, 53721360, 61981920, 73513440, 115315200, 122522400, 189909720, 192099600, 214885440]

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

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