Expansion of g.f. (1+z+z^2-sqrt(1+2*z-z^2-6*z^3-3*z^4))/(2*z^2*(1+z)).

Terms

a(0) =1a(1) =0a(2) =0a(3) =1a(4) =-1a(5) =2a(6) =-1a(7) =1a(8) =3a(9) =-5a(10) =13a(11) =-13a(12) =18a(13) =3a(14) =-22a(15) =96a(16) =-143a(17) =248a(18) =-178a(19) =75a(20) =576a(21) =-1312a(22) =2917a(23) =-3614a(24) =4198a(25) =387a(26) =-8271a(27) =28636a(28) =-49640a(29) =78665