A Filipin, B He, A Togbe - The Fibonacci Quarterly, 2010 - Taylor & Francis
Let k be a positive integer. In this paper we study the D (4)-quadruples {F 2 k, F 2 k+ 6, 4 F 2
k+ 4, d}, where Fk is ak th Fibonacci number. We prove that if d is a positive integer such that …