Sum of terms in row n of A081539.

A081540

Sum of terms in row n of A081539.

Terms

    a(0) =0a(1) =3a(2) =48a(3) =615a(4) =7404a(5) =86415a(6) =987648a(7) =11111103a(8) =123456780a(9) =12469134879

External references