%I A057816
%S A057816 43,171,57,19,75,25,99,33,11,45,15,5,21,7,27,9,3,1,3,1,3,1,3,1,3,1,3,1,
%T A057816 3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,
%U A057816 1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1
%N A057816 If a(n) = 0 mod 3 then a(n+1)=a(n)/3 otherwise a(n+1)=4*a(n)+-1 where 
               sign is chosen to give a multiple of 3.
%Y A057816 Sequence in context: A140640 A083357 A158604 this_sequence A162295 A158628 
               A123597
%Y A057816 Adjacent sequences: A057813 A057814 A057815 this_sequence A057817 A057818 
               A057819
%K A057816 nonn
%O A057816 1,1
%A A057816 Louis DeBiasio (toastyfrsh(AT)aol.com), Nov 06 2000