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

Terms

a(0) =1a(1) =-2a(2) =0a(3) =-8a(4) =-10a(5) =-44a(6) =-104a(7) =-352a(8) =-1066a(9) =-3564a(10) =-11856a(11) =-40720a(12) =-141284a(13) =-497464a(14) =-1768368a(15) =-6343808a(16) =-22926426a(17) =-83402956a(18) =-305142432a(19) =-1122083312a(20) =-4144811244a(21) =-15372407464a(22) =-57222156528a(23) =-213709942208a(24) =-800563540356