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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.

A241648 Numbers m such that the GCD of the x's that satisfy sigma(x) = m is 3.

Table of values

n a(n)
1 4
2 124
3 320
4 392
5 416
6 800
7 1352
8 1520
9 2912
10 2960
11 3536
12 3872
13 5720
14 5936
15 6320
16 7112
17 8216
18 9176
19 9912
20 10472
21 11816
22 12152
23 12896
24 13280
25 14960
26 15176
27 16080
28 16400
29 16536
30 18032
31 18392
32 18560
33 19136
34 19880
35 20000
36 21632
37 21680
38 21920
39 22736
40 23120
41 23816

List of values

[4, 124, 320, 392, 416, 800, 1352, 1520, 2912, 2960, 3536, 3872, 5720, 5936, 6320, 7112, 8216, 9176, 9912, 10472, 11816, 12152, 12896, 13280, 14960, 15176, 16080, 16400, 16536, 18032, 18392, 18560, 19136, 19880, 20000, 21632, 21680, 21920, 22736, 23120, 23816]

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

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