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

Terms

a(0) =0a(1) =2a(2) =1a(3) =8a(4) =6a(5) =31a(6) =31a(7) =122a(8) =149a(9) =488a(10) =687a(11) =1979a(12) =3087a(13) =8115a(14) =13640a(15) =33568a(16) =59588a(17) =139797a(18) =258280a(19) =585208a(20) =1113329a(21) =2459315a(22) =4780244a(23) =10365381a(24) =20466962a(25) =43782453a(26) =87452985a(27) =185231393a(28) =373127431a(29) =784596104