Strictly decreasing sequences
Source:
September 9, 2010
algebraSequencePartial OrdersDivisibilityIMO Shortlistcombinatorics
Problem Statement
Consider the set of all strictly decreasing sequences of natural numbers having the property that in each sequence no term divides any other term of the sequence. Let and be any two such sequences. We say that precedes if for some , and for . Find the terms of the first sequence of the set under this ordering.