A sum over partitions (q=15), see first comment.

A221582

A sum over partitions (q=15), see first comment.

Terms

    a(0) =1a(1) =14a(2) =224a(3) =3360a(4) =50610a(5) =759136a(6) =11390400a(7) =170855776a(8) =2562887040a(9) =38443305390a(10) =576650336640

External references