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A166765 Number of nX3 1..6 arrays containing at least one of each value, and all equal values connected. 0
0, 720, 149760, 5145840, 85542480, 921983760 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

EXAMPLE

Some solutions for n=3

...4.4.6...2.6.3...3.6.4...5.6.4...1.2.2...6.5.1...5.2.2...6.1.4...4.2.3

...1.1.6...5.6.3...1.5.4...5.6.3...3.5.4...3.3.4...6.4.3...5.1.4...5.1.3

...2.5.3...4.6.1...1.5.2...2.1.3...6.5.4...2.3.3...4.4.1...2.2.3...6.1.1

------

...1.4.3...5.1.4...4.1.1...5.5.5...4.6.2...3.3.3...6.2.3...5.5.3...2.2.2

...1.4.2...5.1.2...5.2.6...6.4.1...5.5.2...6.2.4...6.6.1...2.3.3...3.4.1

...6.5.2...3.6.2...5.5.3...2.3.3...3.1.2...1.5.4...6.4.5...1.6.4...5.5.6

CROSSREFS

Sequence in context: A158049 A222004 A047803 * A008411 A221436 A239184

Adjacent sequences:  A166762 A166763 A166764 * A166766 A166767 A166768

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 21 2009

STATUS

approved

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Last modified October 18 05:39 EDT 2019. Contains 328146 sequences. (Running on oeis4.)