A192899 Number of nXnXn triangular 0..3 arrays with each element equal to at least two neighbors and with new values 0..3 introduced in row major order

0, 1, 1, 10, 93, 5695, 546944, 142428331, 80586719099

Offset

1,4

Links

Table of n, a(n) for n=1..9.

Example

Some solutions for 5X5X5
......0..........0..........0..........0..........0..........0..........0
.....0.0........0.0........0.0........0.0........0.0........0.0........0.0
....1.1.0......0.0.0......0.0.0......0.1.1......1.1.1......0.0.0......1.1.1
...0.1.0.1....0.1.1.0....1.2.2.3....1.0.1.0....1.2.2.1....1.0.2.2....1.1.1.1
..0.0.0.1.1..0.0.1.0.0..1.1.2.3.3..1.1.0.0.0..1.1.2.1.1..1.1.2.2.2..1.1.1.1.1

Crossrefs

Sequence in context: A224696 A099295 A167589 * A192900 A192901 A192902

Adjacent sequences: A192896 A192897 A192898 * A192900 A192901 A192902

Keyword

nonn

Author

R. H. Hardin Jul 12 2011

Status

approved