Expansion of 1/(1 + 2*x + 3*x^2 + x^3).

Terms

a(0) =1a(1) =-2a(2) =1a(3) =3a(4) =-7a(5) =4a(6) =10a(7) =-25a(8) =16a(9) =33a(10) =-89a(11) =63a(12) =108a(13) =-316a(14) =245a(15) =350a(16) =-1119a(17) =943a(18) =1121a(19) =-3952a(20) =3598a(21) =3539a(22) =-13920a(23) =13625a(24) =10971a(25) =-48897a(26) =51256a(27) =33208a(28) =-171287a(29) =191694