A192726 Number of nXnXn triangular 0..3 arrays with each element equal to at least one neighbor, containing at least one 3 and with new values 0..3 introduced in row major order

0, 0, 0, 119, 80899, 92038060, 281497492648, 2658520519328575

Offset

1,4

Links

Table of n, a(n) for n=1..8.

Example

Some solutions for 4X4X4
.....0........0........0........0........0........0........0........0
....1.0......0.1......0.0......1.0......1.0......0.1......1.0......1.0
...1.2.2....0.1.2....0.1.1....1.2.2....1.1.0....2.1.3....2.1.0....2.1.1
..3.3.3.3..3.3.1.2..2.2.3.3..1.1.3.3..2.2.3.3..2.2.1.3..2.1.3.3..2.2.3.3

Crossrefs

Sequence in context: A210044 A020546 A323318 * A266032 A269123 A336171

Adjacent sequences: A192723 A192724 A192725 * A192727 A192728 A192729

Keyword

nonn

Author

R. H. Hardin Jul 08 2011

Status

approved