A195801 Number of triangular nXnXn 0..4 arrays with all rows and diagonals having the same length having the same sum, with corners zero.

1, 1, 5, 125, 1759, 213319

Offset: 1

Author

R. H. Hardin Sep 23 2011

Keywords

• nonn

Comments

Column 4 of A195805

Examples

			Some solutions for n=5
......0..........0..........0..........0..........0..........0..........0
.....2.2........3.0........1.3........4.2........4.2........2.1........0.2
....2.2.0......1.3.1......0.1.0......0.3.2......0.3.3......2.2.0......3.4.2
...1.1.3.3....0.3.3.3....3.1.1.1....3.4.2.3....4.3.0.3....0.1.3.3....2.2.3.1
..0.3.1.1.0..0.3.1.0.0..0.1.0.3.0..0.3.1.3.0..0.2.3.3.0..0.3.1.0.0..0.0.4.1.0