Sorry; I meant any two-sided sequence (indexed by Z) in which every term is the sum of the two preceding terms. Jim On Tuesday, August 8, 2017, Dan Asimov <dasimov@earthlink.net> wrote:
Would you be so kind as to define what a "two-sided generalized Fibonacci sequence means"? Sorry, I'm too dumb to be able to figure out what the general term is from "n-m,m,n,m+n".
—Dan
----- Given a two-sided generalized Fibonacci sequence ...,n-m,m,n,m+n,... (with m,n in Z and not both zero), must there exist a two-sided arithmetic progression ...,a-d,a,a+d,... (with a,d in Z and d nonzero) that is disjoint from it? -----
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