A201800 - OEIS

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A201800

Number of zero-sum nX5 -2..2 arrays with every element unequal to at most two horizontal and vertical neighbors

%I #4 Mar 31 2012 12:36:45

%S 381,28625,562961,20960485,722587629,27941324053,1077779765471

%N Number of zero-sum nX5 -2..2 arrays with every element unequal to at most two horizontal and vertical neighbors

%C Column 5 of A201803

%e Some solutions for n=2

%e .-1.-2.-2..0..0....1..1.-2..1..1...-1..1..1..1..1...-2.-1.-1..2.-2

%e ..2..2..1..1.-1....0..0.-2.-2..2...-2.-2..1..0..0...-1..1..1..2..1

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 05 2011

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Last modified December 10 11:10 EST 2023. Contains 367710 sequences. (Running on oeis4.)