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A166770
Number of nX5 1..3 arrays containing at least one of each value, and all equal values connected.
0
36, 1716, 32208, 410832, 4256106, 38813010
OFFSET
1,1
EXAMPLE
Some solutions for n=3
...3.3.3.3.3...1.3.3.3.3...2.2.3.3.3...3.3.3.3.2...1.3.3.1.1...2.2.1.1.1
...2.2.2.2.2...1.1.1.3.2...1.1.3.3.3...3.1.2.2.2...1.1.1.1.1...1.1.1.1.1
...2.2.1.2.2...1.1.2.2.2...1.3.3.3.3...3.3.2.2.2...2.2.2.2.2...1.3.1.1.1
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...2.2.2.3.3...2.2.2.2.2...1.2.2.2.2...1.1.3.3.3...1.1.3.3.3...2.2.2.2.1
...2.2.3.3.1...2.2.1.2.2...1.1.1.2.3...1.1.1.1.3...1.2.2.2.3...2.3.3.2.1
...2.2.3.3.3...2.3.1.2.2...1.2.2.2.3...1.2.1.3.3...1.1.2.2.3...3.3.3.3.1
CROSSREFS
Sequence in context: A209014 A268897 A034996 * A270602 A190918 A356730
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 21 2009
STATUS
approved