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%I #4 Mar 31 2012 12:36:20
%S 0,1,12,566,128311,105795037,292404355298,2682155757690769
%N Number of nXnXn triangular 0..3 arrays with each element equal to at least one neighbor and new values 0..3 introduced in row major order
%e Some solutions for 4X4X4
%e .....0........0........0........0........0........0........0........0
%e ....1.0......1.0......1.0......0.1......0.1......1.0......0.0......0.0
%e ...2.1.0....1.2.0....1.2.0....1.2.1....0.1.1....1.2.2....1.0.2....1.1.0
%e ..2.3.3.0..3.3.2.0..1.1.2.2..1.2.1.1..0.1.0.0..3.3.3.2..1.3.3.2..1.1.0.0
%K nonn
%O 1,3
%A _R. H. Hardin_ Jul 04 2011
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