A193753 Number of n X n X n triangular 0..2 arrays with no element equal to the sum mod 3 of all its neighbors.

2, 8, 64, 1116, 32768, 2098080, 268435456

Offset

1,1

Links

Table of n, a(n) for n=1..7.

Example

Some solutions for 4 X 4 X 4
.....0........0........0........0........2........0........0........2
....2.0......0.1......1.1......2.0......1.2......1.0......1.1......0.0
...2.1.1....1.2.0....1.1.0....2.1.1....0.2.1....2.0.0....1.1.0....0.0.0
..1.0.1.1..2.2.2.0..2.2.0.2..1.0.1.0..0.2.1.1..0.0.2.0..1.2.0.2..0.2.0.2

Crossrefs

Sequence in context: A139684 A139685 A006125 * A006119 A296328 A322066

Adjacent sequences: A193750 A193751 A193752 * A193754 A193755 A193756

Keyword

nonn

Author

R. H. Hardin Aug 03 2011

Status

approved