Expansion of 1/((1-x)(1-3x)(1-6x)(1-9x)).

A021504

Expansion of 1/((1-x)(1-3x)(1-6x)(1-9x)).

Terms

    a(0) =1a(1) =19a(2) =244a(3) =2674a(4) =27055a(5) =261793a(6) =2467018a(7) =22871728a(8) =209866789a(9) =1912958047a(10) =17361652672a(11) =157125321262

External references