A214388 Number of 6X6X6 triangular 0..n arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors, and no element equal to its horizontal neighbors.

64, 211760, 29456216, 1232720402, 26006503128, 348440388682, 3366219398864, 25362185968956, 157029012894616, 828944557039482, 3833275060600576, 15849568260464504, 59538028097491232, 205781154014135148

Offset: 1

Author

R. H. Hardin Jul 14 2012

Keywords

• nonn

Comments

Row 6 of A214384

Examples

			Some solutions for n=3
.......0............0............0............0............0............0
......0.2..........0.2..........0.2..........0.2..........0.2..........0.2
.....0.2.0........0.2.0........0.2.1........0.2.1........0.2.0........0.2.0
....2.0.3.0......0.1.2.0......0.2.1.0......0.2.0.1......2.0.2.0......0.3.0.2
...1.3.0.3.0....1.0.2.0.2....0.2.1.0.3....1.0.3.0.1....2.0.3.0.1....3.0.3.0.3
..1.3.2.0.3.0..1.0.2.0.2.0..1.0.2.0.2.3..2.0.3.1.0.2..2.1.0.3.0.1..3.0.2.3.0.3
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..15