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A166788
Number of nX4 1..4 arrays containing at least one of each value, all equal values connected, and rows considered as a single number in nondecreasing order.
0
24, 1848, 26152, 204257, 1146094, 5161406
OFFSET
1,1
EXAMPLE
Some solutions for n=3
...1.1.3.2...3.2.2.1...3.2.1.4...2.2.2.2...3.2.2.2...3.3.3.1...1.3.3.2
...1.4.2.2...3.2.4.4...3.3.1.4...3.4.2.2...3.3.3.3...3.4.2.1...1.3.4.4
...1.4.4.2...3.3.4.4...3.4.4.4...4.4.1.2...4.4.4.1...3.4.4.4...3.3.3.4
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...2.2.2.2...1.1.2.2...2.4.4.1...2.2.3.3...2.2.1.1...1.2.2.4...1.1.2.4
...3.1.1.2...1.1.4.2...3.4.4.1...2.3.3.3...2.4.1.1...1.2.2.4...1.1.4.4
...4.4.1.2...1.3.4.2...3.4.4.1...2.4.3.1...4.4.1.3...1.2.3.4...3.1.1.4
CROSSREFS
Sequence in context: A348589 A227257 A222999 * A123794 A269648 A269338
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 21 2009
STATUS
approved