A192602 Number of nXnXn triangular 0..3 arrays with each element equal to at least one neighbor and new values 0..3 introduced in row major order

0, 1, 12, 566, 128311, 105795037, 292404355298, 2682155757690769

Offset

1,3

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......1.0......1.0......0.1......0.1......1.0......0.0......0.0
...2.1.0....1.2.0....1.2.0....1.2.1....0.1.1....1.2.2....1.0.2....1.1.0
..2.3.3.0..3.3.2.0..1.1.2.2..1.2.1.1..0.1.0.0..3.3.3.2..1.3.3.2..1.1.0.0

Crossrefs

Sequence in context: A224539 A210816 A133415 * A227143 A274259 A192603

Adjacent sequences: A192599 A192600 A192601 * A192603 A192604 A192605

Keyword

nonn

Author

R. H. Hardin Jul 04 2011

Status

approved