Expansion of 1/((1-x)(1-7x)(1-9x)).

Terms

a(0) =1a(1) =17a(2) =210a(3) =2290a(4) =23411a(5) =230307a(6) =2210020a(7) =20850980a(8) =194384421a(9) =1796538997a(10) =16498405430a(11) =150792530070