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Research Article Open access CC BY 4.0

Closed Formulas for the Sums of Squares of Generalized Fibonacci Numbers

Y¨ uksel Soykan

Asian Journal of Advanced Research and Reports · pp. 23–39 · Published 24 Mar 2020

10.9734/ajarr/2020/v9i130212

Abstract

In this paper, closed forms of the sum formulas for the squares of generalized Fibonacci numbers are presented. As special cases, we give summation formulas of Fibonacci, Lucas, Pell, Pell-Lucas, Jacobsthal and Jacobsthal-Lucas numbers. We present the proofs to indicate how these formulas,in general, were discovered. Of course, all the listed formulas may be proved by induction, but that method of proof gives no clue about their discovery. Our work generalize second order recurrence relations.

Fibonacci numbers Lucas numbers Pell numbers Jacobsthal numbers sum formulas.

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