Fibonacci Quarterly
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Volume 21 Number 1 February 1983

CONTENTS

Cover Page

Acknowledgments 2
     Full text

Neville Robbins
On Fibonacci and Lucas Numbers Which are Sums of Precisely Four Squares
3
     Full text

A. G. Shannon
Intersections of Second-Order Linear Recursive Sequences
6
     Full text

Christopher D. Godsil & Reinhard Razen
A Property of Fibonacci and Tribonacci Numbers
13
     Full text

Charles R. Wall
Unitary Harmonic Numbers
18
     Full text | Letter to the Editor and Response

P. G. Garcia & Steve Ligh
A Generalization of Euler's Φ-Function
26
     Full text

C. Georghiou & A. N. Philippou
Harmonic Sums and the Zeta Function
29
     Full text

Karel L. de Bouvère & Regina E. Lathrop
Injectivity of Extended Generalized Fibonacci Sequences
37
     Full text

Clark Kimberling
One-Free Zeckendorf Sums
53
     Full text

Shmuel Zaks
Generalized Profile Numbers
58
     Full text

D. H. Lehmer & Emma Lehmer
Properties of Polynomials having Fibonacci Numbers for Coefficients
62
     Full text | Letter to the Editor

Ömer Egecioglu
The Parity of the Catalan Number via Lattice Paths
65
     Full text

Edited by A. P. Hillman
Elementary Problems and Solutions
67
     Full text

Edited by Raymond E. Whitney
Advanced Problems and Solutions
74
     Full text

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