Expansion of 2*(1 -4*x +14*x^2 +4*x^3 +9*x^4)/(1-x)^5.

Terms

a(0) =2a(1) =2a(2) =18a(3) =98a(4) =338a(5) =882a(6) =1922a(7) =3698a(8) =6498a(9) =10658a(10) =16562a(11) =24642a(12) =35378a(13) =49298a(14) =66978a(15) =89042a(16) =116162a(17) =149058a(18) =188498a(19) =235298a(20) =290322a(21) =354482a(22) =428738a(23) =514098a(24) =611618a(25) =722402a(26) =847602a(27) =988418a(28) =1146098a(29) =1321938