%I A108413
%S A108413 1,1,1,2,5,7,19,26,71,97,265,362,989,1351,3691,5042,13775,18817,51409,
%T A108413 70226,191861,262087,716035,978122,2672279,3650401,9973081,13623482,
%U A108413 37220045,50843527,138907099,189750626,518408351
%V A108413 1,1,1,-2,-5,7,19,-26,-71,97,265,-362,-989,1351,3691,-5042,-13775,18817,
               51409,-70226,
%W A108413 -191861,262087,716035,-978122,-2672279,3650401,9973081,-13623482,-37220045,
               50843527,
%X A108413 138907099,-189750626,-518408351
%N A108413 Expansion of (1+x+5x^2+2x^3)/(1-4x^2+x^4).
%F A108413 a(0)=a(1)=a(2)=1, a(n)a(n+3) - a(n+1)a(n+2) = -3.
%Y A108413 Unsigned values are in A002531.
%Y A108413 Sequence in context: A128005 A045359 A042809 this_sequence A002531 A042449 
               A046115
%Y A108413 Adjacent sequences: A108410 A108411 A108412 this_sequence A108414 A108415 
               A108416
%K A108413 sign
%O A108413 0,4
%A A108413 Ralf Stephan, Jun 05 2005