MathDB
None of these numbers are cubes

Source:

April 19, 2013
geometry3D geometrymodular arithmeticalgebrafactorizationdifference of cubesspecial factorizations

Problem Statement

Prove that none of the numbers 22n+12^{2^n}+ 1, n=0,1,2,n = 0, 1, 2, \dots is a perfect cube.