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%I A151869 #4 May 19 2020 07:25:48
%S A151869 0,1,2,7,2,6,18,19,2,6,18,18,16,48,74,43,2,6,18,18,16,48,74,42,16,48,
%T A151869 72,68,128,244,234,91,2,6,18,18,16,48,74,42,16,48,72,68,128,244,234,
%U A151869 90,16,48,72,68,128,244,232,116,128,240,280,392,744,956,650,187,2,6,18,18,16
%N A151869 a(0)=0; a(1)=1; a(2)=2; for n>=3 if n=2^i + j with 0<=j<2^i then a(n)=2*a(j) + 2*a(j + 1) except we add 1 if j=2^i-1.
%F A151869 I would very much like a g.f. for this sequence!
%Y A151869 Cf. A151843-A151874.
%K A151869 nonn
%O A151869 0,3
%A A151869 _N. J. A. Sloane_, Jul 17 2009

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