%I #3 Mar 30 2012 18:50:50
%S 1,3,4,6,8,11,12,14,17,19,22,27,28,30,33,37,39,42,47,54,55,57,60,64,
%T 69,71,74,79,86,97,98,100,103,107,112,118,120,123,128,135,146,159,160,
%U 162,165,169,174,180,187,189,192,197,204,215,228,245,246
%N Partial sums of A109400.
%C a(n) = Sum(A109400(m): 1<=m<=n).
%Y Cf. A007504, A014370.
%K nonn
%O 1,2
%A _Reinhard Zumkeller_, Jun 27 2005