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

Terms

a(0) =1a(1) =1a(2) =7a(3) =13a(4) =64a(5) =160a(6) =661a(7) =1927a(8) =7288a(9) =23044a(10) =83413a(11) =275479a(12) =976198a(13) =3301462a(14) =11584861a(15) =39703783a(16) =138747637a(17) =479200129a(18) =1672353256a(19) =5803085008a(20) =20251472416a(21) =70486033288a(22) =246114881956a(23) =858397066324