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109.49 A double-counting proof of Fn+1 + Fn-1 = Ln for n ≥ 2

Published online by Cambridge University Press:  15 October 2025

Li Zhou
Li Zhou*
Affiliation:
Polk State College, 999 Ave. H NE, Winter Haven, FL 33881, USA e-mail: lzhou@polk.edu
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The Mathematical Gazette , Volume 109 , Issue 576 , November 2025 , pp. 557 - 558
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© The Authors, 2025 Published by Cambridge University Press on behalf of The Mathematical Association

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References

Honsberger, R., Mathematical Gems III, MAA (1985) pp. 120–122.Google Scholar
Koshy, T., Fibonacci and Lucas Numbers with Applications, John Wiley & Sons, Inc., (2001) pp. 28–29.Google Scholar