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

Terms

a(0) =1a(1) =0a(2) =0a(3) =3a(4) =3a(5) =3a(6) =33a(7) =72a(8) =120a(9) =583a(10) =1731a(11) =3888a(12) =13759a(13) =44775a(14) =119793a(15) =381220a(16) =1250328a(17) =3682284a(18) =11455153a(19) =37174428a(20) =114947724a(21) =359381467a(22) =1157319135a(23) =3663615552a(24) =11581104121a(25) =37220909916a(26) =119192219799a(27) =380580143110