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Number of nXnXn triangular 0..3 arrays with no element equal to the sum mod 4 of all its neighbors
0

%I #4 Mar 31 2012 12:36:21

%S 3,36,729,59049,14368644,10465547328

%N Number of nXnXn triangular 0..3 arrays with no element equal to the sum mod 4 of all its neighbors

%e Some solutions for 4X4X4

%e .....2........1........0........0........0........1........3........0

%e ....0.1......2.0......2.0......0.1......3.0......3.0......2.3......3.2

%e ...2.2.2....3.1.2....0.1.0....1.3.0....2.3.1....1.3.0....2.3.2....0.2.2

%e ..1.1.1.1..3.2.1.2..0.3.1.3..3.1.1.0..1.0.3.1..0.1.3.0..0.3.1.0..1.0.2.3

%K nonn

%O 1,1

%A _R. H. Hardin_ Aug 03 2011