Revert transform of 2*x*(1 - x + x^4)-x/(1+x).

Terms

a(0) =1a(1) =1a(2) =3a(3) =9a(4) =31a(5) =111a(6) =415a(7) =1589a(8) =6209a(9) =24617a(10) =98755a(11) =399853a(12) =1631223a(13) =6695623a(14) =27622559a(15) =114432337a(16) =475698713a(17) =1983128001a(18) =8286708835a(19) =34692334537a(20) =145457648071a(21) =610578202095