Expansion of 1/((1-4x)(1-8x)(1-9x)).

Terms

a(0) =1a(1) =21a(2) =301a(3) =3669a(4) =40957a(5) =433125a(6) =4418317a(7) =43942773a(8) =428973853a(9) =4128937989a(10) =39306876973a(11) =370937567637