Expansion of (sqrt(1-2x+7x^2-6x^3+5x^4)-(1-x+x^2))/(2x^2(1-x+x^2)).

Terms

a(0) =1a(1) =1a(2) =-1a(3) =-3a(4) =0a(5) =8a(6) =6a(7) =-21a(8) =-37a(9) =45a(10) =175a(11) =-22a(12) =-703a(13) =-533a(14) =2370a(15) =4321a(16) =-5930a(17) =-23560a(18) =3534a(19) =104035a(20) =81083a(21) =-376267a(22) =-705158a(23) =993738a(24) =4047745a(25) =-604007a(26) =-18622243a(27) =-14895477a(28) =69622834a(29) =133284470