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A166807 Number of nX4 1..4 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 nondecreasing order. 0

%I #3 Mar 31 2012 12:35:36

%S 1,269,3909,29742,160612,694843,2563636

%N Number of nX4 1..4 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 nondecreasing order.

%e Some solutions for n=3

%e ...1.1.1.3...1.3.3.3...1.1.1.2...1.3.3.4...1.2.3.4...1.1.2.2...1.1.3.4

%e ...2.4.4.3...1.3.3.4...1.2.2.2...2.3.4.4...1.2.3.4...1.2.2.3...1.3.3.4

%e ...4.4.4.4...2.3.3.4...4.2.3.2...2.3.4.4...1.3.3.4...2.2.2.4...2.2.3.4

%e ------

%e ...1.1.4.4...1.1.2.2...1.2.2.2...1.1.1.4...1.4.4.4...1.1.1.3...2.2.2.3

%e ...1.2.2.2...1.4.2.3...2.2.4.4...1.3.4.4...2.2.3.4...1.1.2.3...2.4.4.4

%e ...1.3.3.3...2.2.2.3...2.3.3.3...3.3.2.2...2.2.4.4...2.2.2.4...4.4.4.1

%K nonn

%O 1,2

%A _R. H. Hardin_ Oct 21 2009

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