Expansion of 1/((1-6*x)*(1-9*x)).

Terms

a(0) =1a(1) =15a(2) =171a(3) =1755a(4) =17091a(5) =161595a(6) =1501011a(7) =13789035a(8) =125780931a(9) =1142106075a(10) =10339420851a(11) =93417584715a(12) =842935044771