%I #4 Mar 31 2012 12:36:20
%S 0,1,12,447,47412,13756977,10906862650,23635238362194,
%T 140000241129382544
%N Number of nXnXn triangular 0..2 arrays with each element equal to at least one neighbor and new values 0..2 introduced in row major order
%e All solutions for 3X3X3
%e ....0......0......0......0......0......0
%e ...0.0....1.0....0.0....0.1....1.0....1.0
%e ..0.1.1..1.2.2..1.1.0..0.0.1..1.0.0..1.1.1
%e ...
%e ....0......0......0......0......0......0
%e ...0.1....0.0....0.1....0.0....0.1....1.0
%e ..2.2.1..0.0.0..0.1.1..1.1.1..1.1.1..1.1.0
%K nonn
%O 1,3
%A _R. H. Hardin_ Jul 04 2011