%I
%S 0,0,1,1,1,2,3,4,4,4,4,5,5,5,6,7,8,8,9,10,10,11,12,12,12,12,13,13,13,
%T 14,14,14,15,16,17,17,17,17,18,18,18,19,20,21,21,22,23,23,24,25,25,25,
%U 25,26,27,28,28,29,30,30,30,30,31,32,33,33,34,35,35,35,35,36,36,36,37,37,37,38,39,40,40
%N Partial sums of A064990.
%C See A064990.
%F s(n)=s([(n+2)/3])+s([(n+1)/3])+[n/3]s([n/3]), where s(0)=0, s(1)=0.
%t (See A064990.)
%Y Cf. A064990, A189658, A189659.
%K nonn
%O 1,6
%A _Clark Kimberling_, Apr 25 2011
