Expansion of 1/((1-5x)(1-6x)(1-9x)).

Terms

a(0) =1a(1) =20a(2) =271a(3) =3110a(4) =32641a(5) =324800a(6) =3125011a(7) =29414090a(8) =272851381a(9) =2506362980a(10) =22871235751a(11) =207773763470