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%I #14 Sep 08 2022 08:46:00
%S 6,41,251,1511,9071,54431,326591,1959551,11757311,70543871,423263231,
%T 2539579391,15237476351,91424858111,548549148671,3291294892031,
%U 19747769352191,118486616113151,710919696678911,4265518180073471,25593109080440831
%N 7*6^n-1.
%H Vincenzo Librandi, <a href="/A198795/b198795.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 (7,-6).
%F a(n) = 6*a(n-1)+5. a(n) = 7*a(n-1)-6*a(n-2), n>1.
%F G.f. ( 6-x ) / ( (6*x-1)*(x-1) ). - R. J. Mathar, Oct 30 2011
%o (Magma) [7*6^n-1: n in [0..30]]
%K nonn
%O 0,1
%A _Vincenzo Librandi_, Oct 30 2011