Search: id:A113856
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%I A113856
%S A113856 833,7425,17325,329175,7194825,7759125,275380875,2256271875,28879228125,
%T A113856 152156958525,22342629684375,2588036347771875,17452999438621621875,
%U A113856 499296818283476338125,894477156692665528125
%N A113856 Numbers n such that n=(2d_1+1)*(2d_2+1)*...*(2d_k+1) where d_1 d_2 ... 
               d_k is the decimal expansion of n.
%e A113856 833 = (2*8+1) * (2*3+1) * (2*3+1) = 17*7*7.
%Y A113856 Sequence in context: A125519 A045070 A095257 this_sequence A162945 A138850 
               A016113
%Y A113856 Adjacent sequences: A113853 A113854 A113855 this_sequence A113857 A113858 
               A113859
%K A113856 base,nonn
%O A113856 1,1
%A A113856 Giovanni Resta (g.resta(AT)iit.cnr.it), Jan 25 2006

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