%I #3 May 01 2013 21:02:10
%S 0,1,4,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,
%T 16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,
%U 16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16
%N First differences of A170837.
%F a(n)=16 for n >= 3.
%K nonn
%O 0,3
%A _N. J. A. Sloane_, Jan 05 2010, based on email from _R. J. Mathar_, Jun 02 2009