|
%I #7 Jul 30 2015 14:56:31
%S 1,2,4,7,14,31,68,146,313,674,1453,3130,6740,14515,31262,67331,145012,
%T 312314,672637,1448674,3120041,6719698,14472356,31169423,67130254,
%U 144579863,311384740,670635970,1444363025
%N Expansion of -(2*x^3-x^2+x-1)/(x^4-3*x^3+3*x^2-3*x+1).
%H <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (3, -3, 3, -1).
%F a(0)=1, a(1)=2, a(2)=4, a(3)=7, a(n)=3*a(n-1)-3*a(n-2)+3*a(n-3)-a(n-4). - _Harvey P. Dale_, May 22 2013
%t CoefficientList[Series[-(2x^3-x^2+x-1)/(x^4-3x^3+3x^2-3x+1),{x,0,30}],x] (* or *) LinearRecurrence[{3,-3,3,-1},{1,2,4,7},30] (* _Harvey P. Dale_, May 22 2013 *)
%K nonn
%O 0,2
%A _N. J. A. Sloane_.
|
