Search: id:A083658
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%I A083658
%S A083658 1,1,3,5,9,15,27,45,81,135,243,405,729,1215,2187,3645,6561,10935,19683,
%T A083658 32805,59049,98415,177147,295245,531441,885735,1594323,2657205,4782969,
%U A083658 7971615,14348907,23914845,43046721,71744535,129140163,215233605
%N A083658 a(n) = a(n-1) + a(n-2) + gcd(a(n-1),a(n-2)) for n>1, with a(0)=1, a(1)=1.
%F A083658 a(2n)=3^n, a(2n+1)=5*3^(n-1) for n>0, with a(0)=1, a(1)=1.
%Y A083658 Sequence in context: A029485 A147087 A140190 this_sequence A018436 A018298 
               A017913
%Y A083658 Adjacent sequences: A083655 A083656 A083657 this_sequence A083659 A083660 
               A083661
%K A083658 nonn
%O A083658 0,3
%A A083658 Paul D. Hanna (pauldhanna(AT)juno.com), Jun 13 2003

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