%I A019526
%S A019526 4,5,8,13,24,44,83,158,303,582,1120,2157,4156,8009,15436,29752,57347,
%T A019526 110538,213067,410698,791644,1525941,2941344,5669621,10928544,21065444,
%U A019526 40604947,78268550,150867479,290806414,560547384,1080489821,2082711092
%N A019526 Poincare series for depths of roots in a certain root system.
%D A019526 Posting to sci.math.research by dima(AT)win.tue.nl (Dmitrii V. Pasechnik), 
               Oct 28 1996.
%F A019526 a(n)=2a(n-1)-a(n-5).
%Y A019526 Sequence in context: A030978 A101948 A087475 this_sequence A145488 A050892 
               A145265
%Y A019526 Adjacent sequences: A019523 A019524 A019525 this_sequence A019527 A019528 
               A019529
%K A019526 nonn,easy
%O A019526 1,1
%A A019526 Robert G. Wilson v (rgwv(AT)rgwv.com)