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

Terms

a(0) =1a(1) =-1a(2) =1a(3) =1a(4) =-3a(5) =5a(6) =-3a(7) =-3a(8) =13a(9) =-19a(10) =13a(11) =13a(12) =-51a(13) =77a(14) =-51a(15) =-51a(16) =205a(17) =-307a(18) =205a(19) =205a(20) =-819a(21) =1229a(22) =-819a(23) =-819a(24) =3277a(25) =-4915a(26) =3277a(27) =3277a(28) =-13107a(29) =19661