A193372 Number of nXnXn triangular 0..7 arrays with no element equal to the product mod 8 of any two neighbors

8, 411, 63632, 34109858, 67940603552

Offset

1,1

Links

Table of n, a(n) for n=1..5.

Example

Some solutions for 4X4X4
.....2........2........6........0........2........0........6........2
....6.2......2.2......6.6......6.6......2.2......2.2......0.6......0.2
...6.6.6....3.0.6....6.0.3....6.0.7....3.0.6....2.0.3....6.6.0....2.6.2
..2.6.2.0..3.6.6.6..6.6.7.4..0.3.2.2..4.2.1.0..3.2.3.3..6.0.2.6..6.2.2.6

Crossrefs

Sequence in context: A188422 A188393 A267162 * A368002 A185833 A301668

Adjacent sequences: A193369 A193370 A193371 * A193373 A193374 A193375

Keyword

nonn

Author

R. H. Hardin Jul 24 2011

Status

approved