Number of n X n X n triangular nonnegative integer arrays with all sums of an element and its neighbors <= 15.
A166187
Number of n X n X n triangular nonnegative integer arrays with all sums of an element and its neighbors <= 15.
Terms
- a(0) =1a(1) =16a(2) =816a(3) =70308a(4) =69652946a(5) =300342814211
External references
- oeis: A166187