Expansion of 1/(1 - 7*x + 9*x^2).

Terms

a(0) =1a(1) =7a(2) =40a(3) =217a(4) =1159a(5) =6160a(6) =32689a(7) =173383a(8) =919480a(9) =4875913a(10) =25856071a(11) =137109280a(12) =727060321a(13) =3855438727a(14) =20444528200a(15) =108412748857a(16) =574888488199