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%I #3 Mar 31 2012 12:35:36
%S 18,642,8100,64980,410832,2247456,11162262,51747942,227868462
%N Number of nX4 1..3 arrays containing at least one of each value, and all equal values connected.
%e Some solutions for n=3
%e ...3.3.3.3...3.1.2.2...2.1.3.3...2.2.2.2...3.2.2.2...3.3.3.2...2.2.2.2
%e ...3.3.3.3...3.3.2.2...2.3.3.3...1.2.2.3...3.2.1.2...3.1.3.3...2.2.3.1
%e ...1.2.2.3...3.3.3.2...3.3.3.3...1.1.1.1...2.2.1.1...1.1.3.3...2.2.3.1
%e ------
%e ...3.3.2.2...1.1.2.2...3.2.2.1...1.1.3.3...2.3.3.3...1.1.3.3...1.1.2.2
%e ...3.3.1.2...1.2.2.2...3.1.1.1...1.3.3.3...2.3.3.1...1.3.3.3...1.2.2.2
%e ...3.3.3.3...2.2.3.2...3.1.1.1...1.1.2.3...2.2.3.3...3.3.2.2...1.1.2.3
%K nonn
%O 1,1
%A _R. H. Hardin_ Oct 21 2009
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