login
9*5^n+1.
1

%I #10 Sep 08 2022 08:46:00

%S 10,46,226,1126,5626,28126,140626,703126,3515626,17578126,87890626,

%T 439453126,2197265626,10986328126,54931640626,274658203126,

%U 1373291015626,6866455078126,34332275390626,171661376953126,858306884765626

%N 9*5^n+1.

%H Vincenzo Librandi, <a href="/A199313/b199313.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 (6,-5).

%F a(n) = 5*a(n-1)-4.

%F a(n) = 6*a(n-1)-5*a(n-2).

%F G.f.: 2*(5-7*x)/((1-x)*(1-5*x)).

%o (Magma) [9*5^n+1: n in [0..30]];

%K nonn,easy

%O 0,1

%A _Vincenzo Librandi_, Nov 05 2011