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

Terms

a(0) =0a(1) =1a(2) =2a(3) =4a(4) =10a(5) =29a(6) =86a(7) =259a(8) =806a(9) =2573a(10) =8332a(11) =27301a(12) =90498a(13) =302933a(14) =1022074a(15) =3472148a(16) =11868242a(17) =40788053a(18) =140851104a(19) =488485195a(20) =1700694884a(21) =5941906864a(22) =20826229564a(23) =73208454375a(24) =258031793698a(25) =911704863957