Expansion of 1/((1-x)*(1-6*x)*(1-7*x)).

Terms

a(0) =1a(1) =14a(2) =141a(3) =1246a(4) =10277a(5) =81270a(6) =624877a(7) =4710062a(8) =34985973a(9) =256995046a(10) =1871524733a(11) =13536029598a(12) =97364345989a(13) =697223254742