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.

A078538 Smallest k > 6 such that sigma_n(k)/phi(k) is an integer.

Table of values

n a(n)
1 12
2 22
3 12
4 249
5 12
6 22
7 12
8 19689
9 12
10 22
11 12
12 249
13 12
14 22
15 12

List of values

[12, 22, 12, 249, 12, 22, 12, 19689, 12, 22, 12, 249, 12, 22, 12]