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

Terms

a(0) =1a(1) =2a(2) =7a(3) =12a(4) =37a(5) =50a(6) =187a(7) =128a(8) =1057a(9) =-502a(10) =7679a(11) =-14420a(12) =73453a(13) =-212554a(14) =843019a(15) =-2848064a(16) =10602409a(17) =-37875706a(18) =139533151a(19) =-510006524a(20) =1885309253a(21) =-6974175142a(22) =25940881947a(23) =-96731191728a(24) =361980829841