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

Terms

a(0) =0a(1) =1a(2) =2a(3) =6a(4) =16a(5) =36a(6) =76a(7) =156a(8) =316a(9) =636a(10) =1276a(11) =2556a(12) =5116a(13) =10236a(14) =20476a(15) =40956a(16) =81916a(17) =163836a(18) =327676a(19) =655356a(20) =1310716a(21) =2621436a(22) =5242876a(23) =10485756a(24) =20971516a(25) =41943036a(26) =83886076a(27) =167772156a(28) =335544316a(29) =671088636