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

Terms

a(0) =1a(1) =0a(2) =2a(3) =5a(4) =5a(5) =4a(6) =13a(7) =29a(8) =34a(9) =39a(10) =89a(11) =176a(12) =233a(13) =313a(14) =610a(15) =1115a(16) =1597a(17) =2328a(18) =4181a(19) =7277a(20) =10946a(21) =16687a(22) =28657a(23) =48416a(24) =75025a(25) =117297a(26) =196418a(27) =326003a(28) =514229a(29) =815656