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

Terms

a(0) =1a(1) =0a(2) =0a(3) =4a(4) =-4a(5) =20a(6) =-20a(7) =84a(8) =-84a(9) =340a(10) =-340a(11) =1364a(12) =-1364a(13) =5460a(14) =-5460a(15) =21844a(16) =-21844a(17) =87380a(18) =-87380a(19) =349524a(20) =-349524a(21) =1398100a(22) =-1398100a(23) =5592404a(24) =-5592404a(25) =22369620a(26) =-22369620a(27) =89478484a(28) =-89478484a(29) =357913940