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.

A122839 Numbers such that Sigma(m)*UnitarySigma(m)= k*UnitaryPhi(m)^2, for some integer k.

Table of values

n a(n)
1 1
2 2
3 3
4 6
5 14
6 15
7 30
8 35
9 42
10 60
11 70
12 78
13 105
14 190
15 210
16 312
17 357
18 418
19 570
20 714
21 910
22 1045
23 1254
24 1428
25 2090
26 2730
27 3135
28 3640
29 4522
30 4674
31 5278
32 6270
33 10659
34 10920
35 12441
36 13566
37 14630
38 15834
39 16770
40 18696
41 20026
42 21318
43 23374
44 24871
45 24882
46 24969
47 25070
48 25714
49 27170

List of values

[1, 2, 3, 6, 14, 15, 30, 35, 42, 60, 70, 78, 105, 190, 210, 312, 357, 418, 570, 714, 910, 1045, 1254, 1428, 2090, 2730, 3135, 3640, 4522, 4674, 5278, 6270, 10659, 10920, 12441, 13566, 14630, 15834, 16770, 18696, 20026, 21318, 23374, 24871, 24882, 24969, 25070, 25714, 27170]