Number of triangular nXnXn 0..6 arrays with all rows and diagonals having the same length having the same sum, with corners zero.

A195803

Number of triangular nXnXn 0..6 arrays with all rows and diagonals having the same length having the same sum, with corners zero.

Terms

    a(0) =1a(1) =1a(2) =7a(3) =343a(4) =12469a(5) =5828215

External references