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Number of n X n binary arrays with no element equal to the mod 3 sum of its king-move neighbors
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%I #6 Dec 18 2015 18:17:28

%S 1,5,28,225,2767,64530,2952294,238729120,34520238211

%N Number of n X n binary arrays with no element equal to the mod 3 sum of its king-move neighbors

%C Diagonal of A183380

%e Some solutions for 5X5

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

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

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Jan 04 2011