Expansion of x*(4+9*x-7*x^2) / ((1-x)*(1+3*x-x^2)).

Terms

a(0) =4a(1) =1a(2) =7a(3) =-14a(4) =55a(5) =-173a(6) =580a(7) =-1907a(8) =6307a(9) =-20822a(10) =68779a(11) =-227153a(12) =750244a(13) =-2477879a(14) =8183887a(15) =-27029534a(16) =89272495a(17) =-294847013a(18) =973813540a(19) =-3216287627a(20) =10622676427a(21) =-35084316902a(22) =115875627139a(23) =-382711198313