Number of nXnXn triangular nonnegative integer arrays with all sums of an element and its neighbors <= 2.
A166174
Number of nXnXn triangular nonnegative integer arrays with all sums of an element and its neighbors <= 2.
Terms
- a(0) =1a(1) =3a(2) =10a(3) =29a(4) =207a(5) =2052a(6) =23591a(7) =461028a(8) =13080857a(9) =509035046a(10) =29707234283
External references
- oeis: A166174