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%I #20 Sep 08 2022 08:45:59
%S 8,62,440,3086,21608,151262,1058840,7411886,51883208,363182462,
%T 2542277240,17795940686,124571584808,872001093662,6104007655640,
%U 42728053589486,299096375126408,2093674625884862,14655722381194040,102590056668358286
%N 9*7^n-1.
%H Vincenzo Librandi, <a href="/A198690/b198690.txt">Table of n, a(n) for n = 0..1000</a>
%H <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (8,-7).
%F a(n) = 7*a(n-1)+6. a(n) = 8*a(n-1)-7*a(n-2), n>1.
%F G.f. ( 8-2*x ) / ( (7*x-1)*(x-1) ). - R. J. Mathar, Oct 30 2011
%t 9*7^Range[0,30]-1 (* or *) LinearRecurrence[{8,-7},{8,62},30] (* _Harvey P. Dale_, Apr 22 2019 *)
%o (Magma) [9*7^n-1: n in [0..30]]
%Y Cf. A024075, A048473, A081655, A198480, A198647.
%K nonn,easy
%O 0,1
%A _Vincenzo Librandi_, Oct 29 2011
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