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

Terms

a(0) =0a(1) =0a(2) =2a(3) =4a(4) =8a(5) =20a(6) =52a(7) =132a(8) =332a(9) =836a(10) =2108a(11) =5316a(12) =13404a(13) =33796a(14) =85212a(15) =214852a(16) =541724a(17) =1365892a(18) =3443932a(19) =8683460a(20) =21894300a(21) =55203844a(22) =139189852a(23) =350950468a(24) =884879388a(25) =2231116932a(26) =5625492956a(27) =14184003780a(28) =35763259292a(29) =90172756228