Search: id:A051813
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%I A051813
%S A051813 1,15,208,2389,24845,243697,2348885,22837227,226507501,
%T A051813 2285904554,23239957877,235731610792,2372897841904,
%U A051813 23686630752065,235058927877399,2327977363798607
%N A051813 Number of n-digit numbers with nonzero multiplicative digital root 2.
%D A051813 William Mayne, sci.math, Jun 15 1991
%F A051813 # { i : 10^(n-1) < i < 10^n and A051802(i)=2 }
%Y A051813 Cf. A051802, A051804, A051822.
%Y A051813 Sequence in context: A063906 A078265 A089138 this_sequence A028230 A122572 
               A067560
%Y A051813 Adjacent sequences: A051810 A051811 A051812 this_sequence A051814 A051815 
               A051816
%K A051813 nonn,base,hard
%O A051813 1,2
%A A051813 Dan Hoey (Hoey(AT)AIC.NRL.Navy.Mil), Dec 09 1999

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