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

Terms

a(0) =1a(1) =7a(2) =19a(3) =49a(4) =120a(5) =284a(6) =656a(7) =1488a(8) =3328a(9) =7360a(10) =16128a(11) =35072a(12) =75776a(13) =162816a(14) =348160a(15) =741376a(16) =1572864a(17) =3325952a(18) =7012352a(19) =14745600a(20) =30932992a(21) =64749568a(22) =135266304a(23) =282066944a(24) =587202560a(25) =1220542464