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.

A284755 Numbers n such that the average of all proper divisors of all positive integers <= n is an integer.

Table of values

n a(n)
1 2
2 3
3 63
4 1249
5 4696
6 1200509

List of values

[2, 3, 63, 1249, 4696, 1200509]