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%I #11 May 07 2019 16:27:26
%S 1,3,41,603,8081,102003,1240121,14704203,171312161,1970527203,
%T 22450640201,253930611003,2855998840241,31980846315603,
%U 356873041128281,3971357037321003,44096709674720321,488769846799627203
%N 11^n-9^n+1^n
%H <a href="/index/Rec">Index entries for linear recurrences with constant coefficients</a>, signature (21,-119,99).
%F G.f.: 1/(1-11*x)-1/(1-9*x)+1/(1-x). E.g.f.: e^(11*x)-e^(9*x)+e^x.
%F a(n)=20*a(n-1)-99*a(n-2)+80 with a(0)=1, a(1)=3 [From _Vincenzo Librandi_, Jul 21 2010]
%t Table[11^n-9^n+1,{n,0,30}] (* or *) LinearRecurrence[{21,-119,99},{1,3,41},30] (* _Harvey P. Dale_, May 07 2019 *)
%Y A155654, A155655, A155656, A155657, A155658, A155659, A155660, A155661, A155662, A155663, A155664, A155665, A155666, A155667, A155668, A155669, A155670, A155671
%K nonn
%O 0,2
%A _Mohammad K. Azarian_, Feb 01 2009