Expansion of (-1+3*x+x^2-x^3)/((x^2+4*x+1)*(x^2-2*x-1)).

Terms

a(0) =1a(1) =-9a(2) =45a(3) =-195a(4) =793a(5) =-3117a(6) =12013a(7) =-45751a(8) =172961a(9) =-650849a(10) =2441917a(11) =-9144539a(12) =34203161a(13) =-127829669a(14) =477505565a(15) =-1783134255a(16) =6657304833a(17) =-24851573497a(18) =92762239373a(19) =-346229372851