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%I #14 Sep 08 2022 08:46:00
%S 2,32,362,3992,43922,483152,5314682,58461512,643076642,7073843072,
%T 77812273802,855935011832,9415285130162,103568136431792,
%U 1139249500749722,12531744508246952,137849189590716482,1516341085497881312
%N 3*11^n-1.
%H Vincenzo Librandi, <a href="/A199019/b199019.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), n>1.
%F G.f.: (2 + 8*x)/(1 - 12*x + 11*x^2). - _Vincenzo Librandi_, Jan 04 2013
%t CoefficientList[Series[(2 + 8*x)/(1 - 12*x + 11*x^2), {x, 0, 30}], x] (* _Vincenzo Librandi_, Jan 04 2013 *)
%o (Magma) [3*11^n-1 : n in [0..20]]
%K nonn,easy
%O 0,1
%A _Vincenzo Librandi_, Nov 02 2011
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