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%I #4 May 19 2020 07:25:21
%S 1,1,3,8,3,7,19,15,3,7,19,14,17,45,49,22,3,7,19,14,17,45,49,21,17,45,
%T 47,48,107,143,93,29,3,7,19,14,17,45,49,21,17,45,47,48,107,143,93,28,
%U 17,45,47,48,107,143,91,55,107,139,143,262,393,329,151,36,3,7,19,14,17,45,49
%N a(0)=1; a(1)=1; a(2)=3; 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 0,3
%A _N. J. A. Sloane_, Jul 17 2009
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