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A202045 Number of zero-sum nX6 -1..1 arrays with every element unequal to at most two horizontal and vertical neighbors 0

%I

%S 141,7669,149149,4188917,119412837,3573771563,108356007319,

%T 3336377520415,103795034576253,3257057281323371

%N Number of zero-sum nX6 -1..1 arrays with every element unequal to at most two horizontal and vertical neighbors

%C Column 6 of A202047

%e Some solutions for n=2

%e .-1..1..1.-1.-1..1...-1.-1..1..1.-1..1....0.-1.-1.-1..1..1....1..1.-1.-1..0..0

%e .-1.-1.-1..1..1..1....0..0..0..0.-1..1....0..0..0..0..1..0....1..1.-1.-1.-1..1

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 10 2011

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Last modified August 19 23:31 EDT 2022. Contains 356231 sequences. (Running on oeis4.)