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%I #6 Mar 30 2012 18:57:24
%S 0,0,1,1,1,2,2,3,3,3,3,4,4,4,5,5,6,6,6,6,7,7,8,8,8,8,9,9,9,10,10,10,
%T 11,11,12,12,12,12,13,13,13,14,14,15,15,15,15,16,16,17,17,17,17,18,18,
%U 18,19,19,19,20,20,21,21,21,21,22,22,23,23,23,23,24,24,24,25,25,25,26,26,27,27,27
%N Partial sums of A189628.
%C See A189628.
%F s(n)=[n/3]+s([(n+1)/3])-s([n/3]), where s(0)=0.
%t (See A189638.)
%Y Cf. A189628, A189629, A189630.
%K nonn
%O 1,6
%A _Clark Kimberling_, Apr 24 2011
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