Number of triangular nXnXn 0..4 arrays with all rows and diagonals having the same length having the same sum, with corners zero.
A195801
Number of triangular nXnXn 0..4 arrays with all rows and diagonals having the same length having the same sum, with corners zero.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =125a(4) =1759a(5) =213319
External references
- oeis: A195801