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%I #4 Mar 31 2012 12:36:21
%S 7,216,6258,405648,85784844,49610954646,76881172019418
%N Number of nXnXn triangular 0..6 arrays with no element equal to the sum mod 7 of any two neighbors
%e Some solutions for 4X4X4
%e .....3........4........0........4........3........0........0........3
%e ....3.5......3.3......3.2......3.3......1.6......4.2......1.4......6.1
%e ...4.3.3....2.2.2....4.4.4....2.2.3....4.6.4....3.3.4....0.0.2....6.6.6
%e ..3.4.4.2..3.3.3.3..2.4.3.4..3.3.4.4..4.4.6.4..3.4.3.3..5.1.4.0..4.1.6.4
%K nonn
%O 1,1
%A _R. H. Hardin_ Jul 17 2011
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