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

Terms

a(0) =0a(1) =1a(2) =1a(3) =3a(4) =9a(5) =29a(6) =97a(7) =335a(8) =1185a(9) =4273a(10) =15649a(11) =58051a(12) =217673a(13) =823709a(14) =3141697a(15) =12065087a(16) =46613121a(17) =181049025a(18) =706549185a(19) =2769069091a(20) =10894034633a(21) =43008192637a(22) =170327978401a(23) =676511841743