1000 ones and iterative processes
Source: Argentine National Olympiad 2014, Level 3, Problem 2
November 6, 2015
number theory
Problem Statement
Given several numbers, one of them, , is chosen and replaced by the three numbers . This process is repeated with the new set of numbers, and so on. Originally, there are ones, and we apply the process several times. A number is called good if there are or more numbers that are the same after each iteration, no matter how many or what operations are performed. Find the largest possible good number.