A193187 Number of nXnXn triangular 0..7 arrays with no element equal to the sum mod 8 of any two neighbors

8, 364, 24403, 4239509, 3061405317, 9848613098653

Offset

1,1

Links

Table of n, a(n) for n=1..6.

Example

Some solutions for 4X4X4
.....2........4........6........4........6........2........2........4
....4.4......2.4......6.2......2.4......4.4......2.6......4.4......4.4
...4.4.4....4.4.7....6.6.5....4.4.4....4.1.1....6.2.1....6.4.3....4.7.7
..7.6.5.2..4.4.4.2..7.6.6.6..5.6.3.3..6.4.7.4..2.7.6.6..4.3.3.5..2.4.4.4

Crossrefs

Sequence in context: A264198 A193837 A193878 * A240380 A038016 A221775

Adjacent sequences: A193184 A193185 A193186 * A193188 A193189 A193190

Keyword

nonn

Author

R. H. Hardin Jul 17 2011

Status

approved