a2 Mathematics Department, Dartmouth College, Hanover, NH 03755, USA (firstname.lastname@example.org)
a3 Department of Computing, Macquarie University, Sydney, NSW 2109, Australia (email@example.com)
We give upper and lower bounds on the count of positive integers n ≤ x dividing the nth term of a non-degenerate linearly recurrent sequence with simple roots.
(Received October 25 2010)
2010 Mathematics subject classification