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A193371 Number of nXnXn triangular 0..6 arrays with no element equal to the product mod 7 of any two neighbors 0
7, 248, 16614, 3067075, 1661756176, 3158137118246 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

EXAMPLE

Some solutions for 4X4X4

.....0........0........0........0........0........0........0........0

....3.5......3.1......3.5......3.3......3.3......3.1......3.1......3.5

...5.3.5....6.0.2....3.6.5....3.6.6....3.3.3....5.6.0....6.0.2....5.6.6

..5.6.6.6..5.1.1.3..3.3.5.5..2.0.3.5..4.4.4.4..0.1.1.4..0.3.1.3..3.5.0.2

CROSSREFS

Sequence in context: A227414 A203698 A229482 * A142805 A203474 A228291

Adjacent sequences:  A193368 A193369 A193370 * A193372 A193373 A193374

KEYWORD

nonn

AUTHOR

R. H. Hardin Jul 24 2011

STATUS

approved

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Last modified January 18 07:18 EST 2019. Contains 319269 sequences. (Running on oeis4.)