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A193835 Number of nXnXn triangular 0..5 arrays with no element equal to the sum or difference mod 6 of any two of its neighbors 0
6, 140, 1171, 68369, 15035559, 10716516295, 23359187769537, 153210141255907393, 3015630657158819868437, 178074077883475758948166301 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for 4X4X4

.....3........3........2........1........1........4........3........4

....3.2......2.2......2.2......1.1......1.1......4.1......3.2......1.4

...2.2.2....3.3.2....2.3.3....1.4.1....4.1.1....1.4.4....3.3.2....1.1.1

..2.2.2.3..3.3.3.3..2.3.2.3..4.1.4.1..1.1.1.4..4.1.1.1..2.3.2.3..1.4.4.4

CROSSREFS

Sequence in context: A335369 A335388 A123729 * A123728 A193876 A293124

Adjacent sequences: A193832 A193833 A193834 * A193836 A193837 A193838

KEYWORD

nonn

AUTHOR

R. H. Hardin Aug 06 2011

STATUS

approved

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Last modified November 28 12:20 EST 2022. Contains 358416 sequences. (Running on oeis4.)