%I #14 Dec 29 2023 14:12:44
%S 0,2,10,46,202,862,3610,14926,61162,249022,1009210,4076206,16422922,
%T 66045982,265246810,1064175886,4266269482,17093775742,68461196410,
%U 274103065966,1097187104842,4391072942302,17571265338010,70305982058446,281286690353002,1125335047769662
%N a(0)=0; for n>0, a(n) = 4^n - 2*3^(n-1).
%H Harvey P. Dale, <a href="/A080643/b080643.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 (7, -12).
%F G.f.: 2*x*(1-2*x)/((1-3*x)*(1-4*x)). - Colin Barker, Jan 20 2012
%t Join[{0},Table[4^n-2*3^(n-1),{n,30}]] (* or *) LinearRecurrence[{7,-12},{0,2,10},30] (* _Harvey P. Dale_, Dec 29 2023 *)
%Y Complement of A025192 in 4^n.
%K nonn,easy
%O 0,2
%A _Max Alekseyev_, Feb 26 2003