Search: id:A010698
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%I A010698
%S A010698 2,8,2,8,2,8,2,8,2,8,2,8,2,8,2,8,2,8,2,8,2,8,2,8,2,8,2,
%T A010698 8,2,8,2,8,2,8,2,8,2,8,2,8,2,8,2,8,2,8,2,8,2,8,2,8,2,8,
%U A010698 2,8,2,8,2,8,2,8,2,8,2,8,2,8,2,8,2,8,2,8,2,8,2,8,2,8,2
%N A010698 Period 2.
%C A010698 This is the regular (simple) continued fraction for (2+sqrt(5))/2. - 
               Antonia Redondo Buitrago, Jul 30 2009
%F A010698 a(n)=-3*(-1)^n+5 a(n)=8*(n mod 2)+2*[(n+1) mod 2] - Paolo P. Lava (ppl(AT)spl.at), 
               Oct 20 2006
%F A010698 G.f.: 2(1+4x)/((1-x)(1+x)). a(n)=2*A010685(n). [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), 
               Oct 20 2008]
%Y A010698 Sequence in context: A141449 A065485 A064912 this_sequence A010466 A086396 
               A098471
%Y A010698 Adjacent sequences: A010695 A010696 A010697 this_sequence A010699 A010700 
               A010701
%K A010698 nonn
%O A010698 0,1
%A A010698 N. J. A. Sloane (njas(AT)research.att.com).

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