A195803 Number of triangular nXnXn 0..6 arrays with all rows and diagonals having the same length having the same sum, with corners zero.

1, 1, 7, 343, 12469, 5828215

Offset: 1

Author

R. H. Hardin Sep 23 2011

Keywords

• nonn

Comments

Column 6 of A195805

Examples

			Some solutions for n=5
......0..........0..........0..........0..........0..........0..........0
.....3.6........4.1........2.5........1.6........0.5........0.6........1.2
....1.4.0......3.5.1......5.0.3......1.4.0......1.1.1......2.2.2......0.2.0
...6.2.3.4....0.4.6.5....3.2.4.2....6.2.3.2....5.1.1.0....6.2.2.0....2.2.2.1
..0.3.2.5.0..0.5.2.0.0..0.4.1.5.0..0.1.2.5.0..0.0.1.5.0..0.0.2.6.0..0.1.0.2.0