Expansion of 1/(1 + 3*x - 4*x^2 + x^3).

Terms

a(0) =1a(1) =-3a(2) =13a(3) =-52a(4) =211a(5) =-854a(6) =3458a(7) =-14001a(8) =56689a(9) =-229529a(10) =929344a(11) =-3762837a(12) =15235416a(13) =-61686940a(14) =249765321a(15) =-1011279139a(16) =4094585641a(17) =-16578638800a(18) =67125538103a(19) =-271785755150