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

Terms

a(0) =1a(1) =1a(2) =2a(3) =6a(4) =20a(5) =70a(6) =255a(7) =960a(8) =3707a(9) =14598a(10) =58395a(11) =236626a(12) =969275a(13) =4007041a(14) =16696822a(15) =70053159a(16) =295691622a(17) =1254772103a(18) =5349978803a(19) =22907982780a(20) =98466168572a(21) =424713570017