Glasnik matematički, Vol. 38 No. 1, 2003.
Original scientific paper
Near squares in linear recurrence sequences
P. G. Walsh
Abstract
Let T > 1 denote a positive integer. Let Un denote the linear recurrence sequence defined by U0 = 0, U1 = 1, and Uk+1 = 2TUk - Uk-1 for k 1. In recent years there have been some improvements on the determination of solutions to the Diophantine equation Un = cx2, where c is a given positive integer. In this paper we use a result of Bennett and the author to determine precisely the integer solutions to the related equation Un = cx2 1, where c is a given even positive integer.
Keywords
Linear recurrence sequence; diophantine equation; Pell equation
Hrčak ID:
1331
URI
Publication date:
1.6.2003.
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