Expansion of 1/((1-2x)(1-4x)(1-6x)(1-9x)).

A025967

Expansion of 1/((1-2x)(1-4x)(1-6x)(1-9x)).

Terms

    a(0) =1a(1) =21a(2) =289a(3) =3321a(4) =34705a(5) =343257a(6) =3282913a(7) =30740457a(8) =283960369a(9) =2599944633a(10) =23667405697a(11) =214622461833

External references