Expansion of (1-x-x^2-sqrt(1-2*x-5*x^2+10*x^3+x^4))/(2*x^2).

Terms

a(0) =1a(1) =-1a(2) =1a(3) =-2a(4) =2a(5) =-6a(6) =5a(7) =-21a(8) =14a(9) =-79a(10) =43a(11) =-308a(12) =147a(13) =-1221a(14) =571a(15) =-4868a(16) =2514a(17) =-19388a(18) =12144a(19) =-76814a(20) =61681a(21) =-302007a(22) =318597a(23) =-1177274a(24) =1640389a(25) =-4553897a(26) =8333655a(27) =-17533572a(28) =41583474a(29) =-67607944