A109618 Half the number of nXnXn triangular binary arrays with the sum of each element's NW E SW neighbors unequal to the sum of its NE W SE neighbors.

0, 0, 0, 2, 8, 56, 482, 6374, 116980, 3089024, 115321068, 6150672392

Offset: 1

Author

R. H. Hardin, Jul 02 2011

Keywords

• nonn
• more

Examples

			Some solutions for 6X6X6 with summit=0
.......0............0............0............0............0............0
......0.1..........1.0..........1.0..........0.1..........1.0..........1.0
.....0.0.1........0.1.1........1.0.1........1.1.0........0.1.1........0.1.1
....0.1.0.0......0.1.1.1......1.1.0.1......1.1.0.1......1.0.1.1......0.1.0.0
...1.1.0.1.1....1.1.0.1.0....0.1.0.0.0....1.0.0.0.1....1.0.0.0.1....0.0.0.1.0
..0.0.1.1.0.0..0.0.1.0.1.0..0.1.0.1.1.0..0.0.1.1.0.0..0.0.1.1.0.0..0.1.1.0.1.1
		

Crossrefs

Equal sums gives A023022(n+2).