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%I #10 Sep 08 2022 08:46:00
%S 7,49,385,3073,24577,196609,1572865,12582913,100663297,805306369,
%T 6442450945,51539607553,412316860417,3298534883329,26388279066625,
%U 211106232532993,1688849860263937,13510798882111489,108086391056891905
%N 6*8^n+1.
%H Vincenzo Librandi, <a href="/A199554/b199554.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) = 7*A083068(n).
%F a(n) = 8*a(n-1)-7.
%F a(n) = 9*a(n-1)-8*a(n-2).
%F G.f.: 7*(1-2*x)/((1-x)*(1-8*x)).
%o (Magma) [6*8^n+1: n in [0..30]];
%K nonn,easy
%O 0,1
%A _Vincenzo Librandi_, Nov 08 2011
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