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A199030 10*11^n-1. 2

%I

%S 9,109,1209,13309,146409,1610509,17715609,194871709,2143588809,

%T 23579476909,259374246009,2853116706109,31384283767209,

%U 345227121439309,3797498335832409,41772481694156509,459497298635721609,5054470284992937709

%N 10*11^n-1.

%H Vincenzo Librandi, <a href="/A199030/b199030.txt">Table of n, a(n) for n = 0..900</a>

%H <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (12,-11).

%F a(n) = 11*a(n-1)+10.

%F a(n) = 12*a(n-1)-11*a(n-2).

%F G.f.: (9+x)/((1-x)*(1-11*x)). - Bruno Berselli, Nov 03 2011

%o (MAGMA) [10*11^n-1: n in [0..20]];

%K nonn,easy

%O 0,1

%A _Vincenzo Librandi_, Nov 03 2011

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Last modified September 27 15:28 EDT 2021. Contains 347691 sequences. (Running on oeis4.)