A192900 Number of nXnXn triangular 0..4 arrays with each element equal to at least two neighbors and with new values 0..4 introduced in row major order.

0, 1, 1, 10, 93, 6302, 733097, 300001030

Offset

1,4

Links

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

Example

Some solutions for 6X6X6
.......0............0............0............0............0............0
......0.0..........0.0..........0.0..........0.0..........0.0..........0.0
.....1.1.2........1.2.2........1.0.0........1.1.1........0.0.0........1.2.2
....2.1.2.2......1.1.2.2......1.1.1.1......1.1.1.1......0.0.0.0......1.1.2.2
...2.2.2.1.1....3.0.0.2.3....0.1.0.1.2....1.1.2.2.3....1.1.0.0.0....3.4.4.1.1
..2.2.2.2.1.1..3.3.0.0.3.3..0.0.0.0.2.2..1.1.2.2.3.3..1.1.0.0.0.0..3.3.4.4.1.1

Crossrefs

Sequence in context: A099295 A167589 A192899 * A192901 A192902 A192903

Adjacent sequences: A192897 A192898 A192899 * A192901 A192902 A192903

Keyword

nonn

Author

R. H. Hardin, Jul 12 2011

Status

approved