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%I #4 Mar 31 2012 12:36:44
%S 18,36487,168357815,732383803600,2571822263246639,7383126698273869479
%N Number of nX6 zero-sum -2..2 arrays with rows and columns lexicographically nondecreasing
%C Column 6 of A201496
%e Some solutions for n=2
%e .-2.-1.-1..0..0..2...-2.-1.-1..1..1..1...-2.-1.-1..0..1..1...-2..0..0..0..1..2
%e .-1.-1.-1..2..2..1....1..0..0.-2..1..1....2.-2..2..2.-2..0...-2..0..2..2.-1.-2
%K nonn
%O 1,1
%A _R. H. Hardin_ Dec 02 2011
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