Search: id:A024127
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%I A024127
%S A024127 0,10,120,1330,14640,161050,1771560,19487170,214358880,2357947690,
%T A024127 25937424600,285311670610,3138428376720,34522712143930,
%U A024127 379749833583240,4177248169415650,45949729863572160,505447028499293770
%N A024127 11^n-1.
%C A024127 Numbers n for which the expression 11^n/(n+1) is an integer. - Paolo 
               P. Lava (ppl(AT)spl.at), May 29 2006
%F A024127 G.f.: 1/(1-11*x)-1/(1-x). E.g.f.: e^(11*x)-e^x. [From Mohammad K. Azarian 
               (azarian(AT)evansville.edu), Jan 14 2009]
%F A024127 a(n)=11*a(n-1)+10 (with a(1)=0) [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), 
               Oct 30 2009]
%e A024127 For n=2, a(2)=11*0+10=10; n=3, a(3)=11*10+10=120; n=4, a(4)=11*120+10=1330 
               [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Oct 30 2009]
%Y A024127 Sequence in context: A030022 A069673 A069498 this_sequence A005949 A027568 
               A034255
%Y A024127 Adjacent sequences: A024124 A024125 A024126 this_sequence A024128 A024129 
               A024130
%K A024127 nonn
%O A024127 0,2
%A A024127 N. J. A. Sloane (njas(AT)research.att.com).

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