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.

A074891 Numbers n such that sigma(n) = phi(3n).

Table of values

n a(n)
1 15
2 35
3 357
4 1045
5 3339
6 5049
7 10659
8 12441
9 24871
10 24969
11 29029
12 50065
13 58435
14 64285
15 87685
16 99693
17 132957
18 137885
19 140335
20 353133
21 423657
22 596037
23 655707
24 734517
25 745503
26 894387
27 1390753
28 1406427
29 1529983
30 1641783
31 1739507
32 1823877

List of values

[15, 35, 357, 1045, 3339, 5049, 10659, 12441, 24871, 24969, 29029, 50065, 58435, 64285, 87685, 99693, 132957, 137885, 140335, 353133, 423657, 596037, 655707, 734517, 745503, 894387, 1390753, 1406427, 1529983, 1641783, 1739507, 1823877]