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A166823
Number of nX4 1..3 arrays containing at least one of each value, all equal values connected, rows considered as a single number in nondecreasing order, and columns considered as a single number in increasing order.
0
0, 9, 118, 746, 3244, 11187, 32856, 85642, 203393
OFFSET
1,2
EXAMPLE
Some solutions for n=4
...1.1.3.3...1.1.1.2...1.1.1.3...1.1.2.2...1.1.1.3...1.2.3.3...1.2.3.3
...1.2.2.3...1.1.2.2...1.2.3.3...1.2.2.3...1.1.2.3...2.2.2.3...1.2.3.3
...2.2.2.3...1.2.2.2...1.2.3.3...1.2.3.3...1.2.2.2...2.2.2.3...1.2.3.3
...2.2.2.3...3.3.2.2...2.2.2.3...2.2.3.3...1.2.2.2...2.3.3.3...2.2.2.3
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...1.1.1.1...1.2.2.2...1.1.1.3...1.1.3.3...1.1.1.2...1.1.2.2...1.1.3.3
...1.1.1.3...1.2.2.3...1.1.2.3...1.1.3.3...1.1.2.2...1.2.2.3...1.2.2.3
...1.1.3.3...2.2.3.3...1.3.3.3...2.2.2.3...1.1.3.2...2.2.3.3...1.2.3.3
...1.3.3.2...2.2.3.3...3.3.3.3...2.3.3.3...1.2.2.2...3.3.3.3...1.2.3.3
CROSSREFS
Sequence in context: A081629 A051617 A358387 * A322928 A340236 A087984
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 21 2009
STATUS
approved