- #1

CornMuffin

- 55

- 5

## Homework Statement

Find the values of [tex]n\geq 1[/tex] for which 1! + 2! + ... + n! is a perfect square in the integers.

## Homework Equations

## The Attempt at a Solution

n=1 and n=3 works, but I don't know how to find anymore, or prove that there aren't anymore