Search: id:A124167
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%I A124167
%S A124167 0,90,990,9990,99990,999990,9999990,99999990,999999990,9999999990,
%T A124167 99999999990,999999999990,9999999999990,99999999999990,999999999999990,
%U A124167 9999999999999990,99999999999999990,999999999999999990
%N A124167 10*(10^n-1).
%C A124167 Equals 10*A002283. Partial sums give 10*A099676.
%p A124167 a:=n->sum (10^(n-j+2)-10^(n-j+1),j=0..n): seq(a(n),n=0..28);
%Y A124167 Sequence in context: A051695 A097372 A101243 this_sequence A048548 A013427 
               A013425
%Y A124167 Adjacent sequences: A124164 A124165 A124166 this_sequence A124168 A124169 
               A124170
%K A124167 easy,nonn
%O A124167 0,2
%A A124167 Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Dec 02 2006

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