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

Terms

a(0) =-2a(1) =8a(2) =-34a(3) =136a(4) =-530a(5) =2032a(6) =-7714a(7) =29104a(8) =-109378a(9) =410040a(10) =-1534722a(11) =5738360a(12) =-21441682a(13) =80083808a(14) =-299027394a(15) =1116348896a(16) =-4167148290a(17) =15554127592a(18) =-58053908834a(19) =216672484584a(20) =-808662529938