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%I #10 Sep 08 2022 08:46:00
%S 6,41,321,2561,20481,163841,1310721,10485761,83886081,671088641,
%T 5368709121,42949672961,343597383681,2748779069441,21990232555521,
%U 175921860444161,1407374883553281,11258999068426241,90071992547409921
%N 5*8^n+1.
%H Vincenzo Librandi, <a href="/A199553/b199553.txt">Table of n, a(n) for n = 0..1000</a>
%H <a href="/index/Rec">Index entries for linear recurrences with constant coefficients</a>, signature (9,-8).
%F a(n) = 8*a(n-1)-7.
%F a(n) = 9*a(n-1)-8*a(n-2).
%F G.f.: (6-13*x)/((1-x)*(1-8*x)).
%o (Magma) [5*8^n+1: n in [0..30]];
%K nonn,easy
%O 0,1
%A _Vincenzo Librandi_, Nov 08 2011
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