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

Terms

a(0) =1a(1) =0a(2) =0a(3) =3a(4) =3a(5) =3a(6) =36a(7) =78a(8) =129a(9) =685a(10) =2043a(11) =4554a(12) =17233a(13) =57279a(14) =153045a(15) =509848a(16) =1724739a(17) =5117643a(18) =16445555a(19) =55165536a(20) =173225715a(21) =555899673a(22) =1847495415a(23) =5971507824a(24) =19333284247a(25) =63975307425a(26) =209807070669a(27) =685973054145