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A166772 Number of nX6 1..3 arrays containing at least one of each value, and all equal values connected. 0
60, 3780, 108456, 2247456, 38813010 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
Some solutions for n=3
...3.3.1.2.2.2...1.1.1.1.1.1...2.3.3.3.1.1...2.2.3.3.3.3...1.1.1.1.1.3
...3.1.1.1.1.1...1.1.1.3.1.1...2.2.2.3.1.1...1.1.1.3.3.3...2.1.1.1.3.3
...3.3.3.3.1.1...1.2.2.2.2.1...2.2.2.1.1.1...1.3.3.3.3.3...2.2.2.1.3.3
------
...3.3.3.3.2.2...1.2.2.2.2.3...1.1.1.1.3.3...3.3.3.1.1.1...1.2.2.2.2.2
...3.3.1.3.2.2...1.1.2.3.3.3...2.1.2.1.3.2...3.2.3.1.2.1...2.2.2.3.3.2
...3.1.1.3.3.2...2.2.2.2.2.2...2.2.2.2.2.2...3.2.2.2.2.2...2.2.2.3.3.3
CROSSREFS
Sequence in context: A267977 A159991 A042741 * A293091 A074076 A084274
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 21 2009
STATUS
approved

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Last modified March 28 10:55 EDT 2024. Contains 371241 sequences. (Running on oeis4.)