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Number of nXnXn triangular binary arrays with no element having four consecutive neighbors taken clockwise with value 1
0

%I #4 Mar 31 2012 12:35:50

%S 2,8,54,646,14222,555120,38707416,4852741246,1088604700024,

%T 437267393817902,314722463901327496

%N Number of nXnXn triangular binary arrays with no element having four consecutive neighbors taken clockwise with value 1

%e Some solutions for 4X4

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

%e ....0.0......0.1......1.0......0.0......0.0......1.1......0.0......1.1

%e ...0.0.0....0.0.0....1.0.0....1.0.1....1.0.0....0.0.0....0.1.1....0.1.0

%e ..0.0.1.1..1.1.0.0..1.0.1.1..1.0.1.0..0.1.0.0..0.0.0.0..0.0.1.1..0.0.1.0

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 03 2011