A193328 Number of nXnXn triangular 0..6 arrays with each element equal to the product mod 7 of two neighbors.

0, 5, 119, 51727, 107764134

Offset

1,2

Links

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

Example

Some solutions for 4X4X4
.....3........4........6........0........6........5........2........3
....6.4......5.5......6.1......0.5......4.5......3.4......3.3......1.3
...5.5.1....3.3.3....1.6.6....1.5.1....3.2.1....6.2.5....0.1.2....6.5.4
..3.2.6.6..6.2.6.4..3.3.5.2..1.1.3.3..4.6.4.4..6.1.2.3..0.6.6.5..6.1.6.3

Crossrefs

Sequence in context: A338755 A155202 A168599 * A002008 A307350 A322707

Adjacent sequences: A193325 A193326 A193327 * A193329 A193330 A193331

Keyword

nonn

Author

R. H. Hardin, Jul 22 2011

Status

approved