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Title:On the Stern sequence and a related sequence
Author(s):Lansing, Jennifer
Director of Research:Reznick, Bruce A.
Doctoral Committee Chair(s):Berndt, Bruce C.
Doctoral Committee Member(s):Reznick, Bruce A.; Zaharescu, Alexandru; Stolarsky, Kenneth B.
Department / Program:Mathematics
Discipline:Mathematics
Degree Granting Institution:University of Illinois at Urbana-Champaign
Degree:Ph.D.
Genre:Dissertation
Subject(s):Stern sequence
Abstract:In this dissertation, we discuss properties of the Stern sequence, denoted by s(n), and define a related sequence. First, we give a brief historical background and known results. We then discuss the second and third largest values for the Stern sequence, as well as the asymptotics when a value m will first appear in a row in the diatomic array. We also investigate the distribution of values for the Stern sequence, as well as the gaps of the ordered values from a row. After this, we investigate the properties of the related sequence called w(n):=s(3n)/2. We give recurrences for the sequence and find generalized recurrences and a reduction formula. We attempt to find a combinatorial interpretation for w(n), as well as a generating function for the sequence. We also find the largest value of w(n) for a row of its triangular array. We consider sums of w(n) and the average order of magnitude, which is the same average order of the Stern sequence. We also examine the greatest common divisor of consecutive terms, as well as the sequence w(n) modulo 2. Finally, we define a polynomial analogue and investigate some of its properties.
Issue Date:2014-05-30
URI:http://hdl.handle.net/2142/49483
Rights Information:Copyright 2014 Jennifer Lansing
Date Available in IDEALS:2014-05-30
Date Deposited:2014-05


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