%I A083334
%S A083334 1,6,17,47,179,414,1723,3793,16201,35166,151337,327167,1411019,3046854,
%T A083334 13148803,28383073,122510161,264425526,1141401857,2463529487,
%U A083334 10634068259,22951715694,99073772683,213832351153,923033565721
%N A083334 a(n)=12a(n-2)-25a(n-4).
%C A083334 a(n)/A083335(n) converges to sqrt(11)
%F A083334 G.f.:(1+6x+5x^2-25x^3)/(1-12x^2+25x^4)
%F A083334 a(n+1) = x^n + (-1)^n(x-2)^n where x = 1 + sqrt(11) then divided by 2^(ceil(.5n)) 
               - Ben Thurston (benthurston27(AT)yahoo.com), Aug 30 2006
%t A083334 CoefficientList[Series[(1+6x+5x^2-25x^3)/(1-12x^2+25x^4), {x, 0, 10}], 
               x]
%Y A083334 Sequence in context: A026382 A054492 A128525 this_sequence A088016 A010330 
               A109311
%Y A083334 Adjacent sequences: A083331 A083332 A083333 this_sequence A083335 A083336 
               A083337
%K A083334 easy,nonn
%O A083334 0,2
%A A083334 Mario Catalani (mario.catalani(AT)unito.it), Apr 26 2003