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%I #2 Mar 30 2012 16:51:07
%S 0,0,0,1,0,0,2,2,0,0,2,1,0,4,6,3,0,0,2,1,0,4,6,2,0,4,4,1,8,16,12,4,0,
%T 0,2,1,0,4,6,2,0,4,4,1,8,16,12,3,0,4,4,1,8,16,10,2,8,12,6,17,40,40,20,
%U 5,0,0,2,1,0,4,6,2,0,4,4,1,8,16,12,3,0,4,4,1,8,16,10,2,8,12,6,17,40,40,20,4
%N a(0)=0; a(1)=0; a(2)=0; for n>=3 if n=2^i + j with 0<=j<2^i then a(n)=a(j) + 2*a(j + 1) except we add 1 if j=2^i-1.
%F I would very much like a g.f. for this sequence!
%Y Cf. A151843-A151874.
%K nonn
%O 0,7
%A _N. J. A. Sloane_, Jul 17 2009
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