Number of nXnXn triangular nonnegative integer arrays with all sums of an element and its neighbors <= 12.

A166184

Number of nXnXn triangular nonnegative integer arrays with all sums of an element and its neighbors <= 12.

Terms

    a(0) =1a(1) =13a(2) =455a(3) =23464a(4) =11477240a(5) =20485423871

External references