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

Terms

a(0) =1a(1) =-1a(2) =-1a(3) =4a(4) =-3a(5) =-6a(6) =16a(7) =-7a(8) =-31a(9) =61a(10) =-6a(11) =-147a(12) =220a(13) =68a(14) =-655a(15) =739a(16) =639a(17) =-2772a(18) =2233a(19) =3950a(20) =-11188a(21) =5521a(22) =20805a(23) =-43035a(24) =6946a(25) =99929a(26) =-156856a(27) =-36056a(28) =449697a(29) =-534441