Expansion of (1-3*x)/(1 - 6*x + 4*x^2).

Terms

a(0) =1a(1) =3a(2) =14a(3) =72a(4) =376a(5) =1968a(6) =10304a(7) =53952a(8) =282496a(9) =1479168a(10) =7745024a(11) =40553472a(12) =212340736a(13) =1111830528a(14) =5821620224a(15) =30482399232a(16) =159607914496a(17) =835717890048