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%I A199486 #11 Sep 08 2022 08:46:00
%S A199486 5,32,221,1544,10805,75632,529421,3705944,25941605,181591232,
%T A199486 1271138621,8897970344,62285792405,436000546832,3052003827821,
%U A199486 21364026794744,149548187563205,1046837312942432,7327861190597021,51295028334179144
%N A199486 (9*7^n+1)/2.
%H A199486 Vincenzo Librandi, Table of n, a(n) for n = 0..1000
%H A199486 Index entries for linear recurrences with constant coefficients, signature (8,-7).
%F A199486 a(n) = 7*a(n-1)-3.
%F A199486 a(n) = 8*a(n-1)-7*a(n-2).
%F A199486 G.f.: (5-8*x)/((1-x)*(1-7*x)).
%o A199486 (Magma) [(9*7^n+1)/2: n in [0..30]];
%K A199486 nonn,easy
%O A199486 0,1
%A A199486 _Vincenzo Librandi_, Nov 07 2011
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