Search: id:A079730
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%I A079730
%S A079730 1,2,2,3,3,4,4,4,1,1,1,2,2,2,2,3,3,3,3,1,1,1,1,2,3,4,1,1,2,2,3,3,4,4,1,
%T A079730 1,1,2,2,2,3,3,3,4,4,4,1,2,3,4,1,1,2,2,2,3,3,3,3,4,1,2,2,3,3,4,4,4,1,1,
%U A079730 1,2,3,4,1,1,2,2,3,3,4,4,4,1,1,1,2,2,2,3,4,4,1,1,1,2,2,2,2,3,4,1,1,2,2
%N A079730 Kolakoski variation using (1,2,3,4) starting with 1,2.
%C A079730 a(1)=1 then a(n) is the length of n-th run. This kind of Kolakoski variation 
               using(1,2,3,4,...,m) as m grows reaches the Golomb's sequence A001462.
%F A079730 Partial sum sequence is expected to be asymptotic to 5/2*n.
%e A079730 Sequence begins: 1,2,2,3,3,4,4,4,1,1,1,2,2,2,2,3,3,3,3, read it as: (1),
               (2,2),(3,3),(4,4,4),(1,1,1),(2,2,2,2),(3,3,3,3),... then count the 
               terms in parentheses to get: 1,2,2,3,3,4,4,.. which is the same sequence.
%Y A079730 Cf. A000002.
%Y A079730 Sequence in context: A036041 A085654 A074719 this_sequence A035486 A143489 
               A130249
%Y A079730 Adjacent sequences: A079727 A079728 A079729 this_sequence A079731 A079732 
               A079733
%K A079730 nonn
%O A079730 1,2
%A A079730 Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 17 2003

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