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

Terms

a(0) =1a(1) =1a(2) =1a(3) =0a(4) =-5a(5) =-24a(6) =-90a(7) =-312a(8) =-1053a(9) =-3536a(10) =-11934a(11) =-40664a(12) =-140114a(13) =-488240a(14) =-1719380a(15) =-6113200a(16) =-21921245a(17) =-79200160a(18) =-288045110a(19) =-1053728920a(20) =-3874721030a(21) =-14313562480a(22) =-53093391980a(23) =-197669347600a(24) =-738398308850