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A192603
Number of nXnXn triangular 0..4 arrays with each element equal to at least one neighbor and new values 0..4 introduced in row major order
0
0, 1, 12, 572, 167774, 259518712, 1697443501971
OFFSET
1,3
EXAMPLE
Some solutions for 4X4X4
.....0........0........0........0........0........0........0........0
....1.0......0.1......0.0......0.0......1.0......1.0......1.0......0.1
...1.2.2....0.1.2....0.1.0....0.0.1....0.1.1....1.2.0....1.2.2....2.1.3
..2.2.2.2..3.3.2.2..0.1.1.0..2.2.0.1..0.1.2.2..1.2.2.0..2.2.3.3..2.4.4.3
CROSSREFS
Sequence in context: A192602 A227143 A274259 * A192604 A192605 A192606
KEYWORD
nonn
AUTHOR
R. H. Hardin Jul 04 2011
STATUS
approved