%I #10 Sep 18 2022 18:50:24
%S 1,23,342,4198,46403,481341,4792264,46410716,440901285,4131534979,
%T 38331795866,353038275954,3233774790247,29499248911337,
%U 268261230188748,2433731253526312,22039259605258889,199303153044040815
%N Expansion of 1/((1-3x)(1-4x)(1-7x)(1-9x)).
%H <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (23,-187,633,-756).
%F a(n)=(2*9^(n+3)-5*7^(n+3)+8*4^(n+3)-5*3^(n+3))/120. [_Yahia Kahloune_, May 31 2013]
%t CoefficientList[Series[1/((1-3x)(1-4x)(1-7x)(1-9x)),{x,0,30}],x] (* or *) LinearRecurrence[ {23,-187,633,-756},{1,23,342,4198},30] (* _Harvey P. Dale_, Sep 18 2022 *)
%K nonn,easy
%O 0,2
%A _N. J. A. Sloane_.