Number of nXnXn triangular nonnegative integer arrays with all sums of an element and its neighbors <= 8.
A166180
Number of nXnXn triangular nonnegative integer arrays with all sums of an element and its neighbors <= 8.
Terms
- a(0) =1a(1) =9a(2) =165a(3) =3613a(4) =534687a(5) =215061366a(6) =191732812341
External references
- oeis: A166180