Expansion of 1/((1-3*x)*(1-7*x)).

Terms

a(0) =1a(1) =10a(2) =79a(3) =580a(4) =4141a(5) =29230a(6) =205339a(7) =1439560a(8) =10083481a(9) =70604050a(10) =494287399a(11) =3460188940a(12) =24221854021a(13) =169554572470