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.

A283105 Numbers that are an integer multiple of the mean of their smallest and largest nontrivial divisors.

Table of values

n a(n)
1 4
2 9
3 12
4 25
5 45
6 49
7 121
8 169
9 289
10 361
11 529
12 637
13 841
14 961
15 1369
16 1681
17 1849
18 2209
19 2809
20 3481
21 3721
22 4489
23 5041
24 5329
25 6241
26 6889
27 7921
28 9409
29 10201
30 10609
31 11449
32 11881
33 12769
34 13357
35 16129
36 17161
37 18769
38 19321
39 22201
40 22801
41 24649
42 26569
43 27889
44 29929
45 32041
46 32761
47 36481
48 37249
49 38809
50 39601
51 44521

List of values

[4, 9, 12, 25, 45, 49, 121, 169, 289, 361, 529, 637, 841, 961, 1369, 1681, 1849, 2209, 2809, 3481, 3721, 4489, 5041, 5329, 6241, 6889, 7921, 9409, 10201, 10609, 11449, 11881, 12769, 13357, 16129, 17161, 18769, 19321, 22201, 22801, 24649, 26569, 27889, 29929, 32041, 32761, 36481, 37249, 38809, 39601, 44521]

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

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