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

Terms

a(0) =1a(1) =-1a(2) =0a(3) =3a(4) =-5a(5) =2a(6) =9a(7) =-21a(8) =16a(9) =23a(10) =-81a(11) =90a(12) =37a(13) =-289a(14) =432a(15) =-69a(16) =-941a(17) =1874a(18) =-1071a(19) =-2685a(20) =7504a(21) =-6961a(22) =-5913a(23) =27882a(24) =-35891a(25) =-3817a(26) =95472a(27) =-163437a(28) =60331a(29) =294050