Expansion of (1 - 9*x*(1 - 9*x)^(2/3))^(2/3).

Terms

a(0) =1a(1) =-6a(2) =27a(3) =126a(4) =513a(5) =1296a(6) =-1782a(7) =-35964a(8) =-68526a(9) =2131110a(10) =31341168a(11) =257694210a(12) =1423944765a(13) =4790619126a(14) =5675652099a(15) =61932520134