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

1,1

Comments

Row 6 of A214384

Links

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

Example

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

Crossrefs

Sequence in context: A029753 A036533 A139565 * A016938 A017010 A203255

Adjacent sequences: A214385 A214386 A214387 * A214389 A214390 A214391

Keyword

nonn

Author

R. H. Hardin Jul 14 2012

Status

approved