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Number of nXnXn triangular 0..6 arrays with each element equal to at least one neighbor and new values 0..6 introduced in row major order
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%I #4 Mar 31 2012 12:36:20

%S 0,1,12,572,174202,378191999

%N Number of nXnXn triangular 0..6 arrays with each element equal to at least one neighbor and new values 0..6 introduced in row major order

%e Some solutions for 5X5X5

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

%e .....0.0........0.1........0.0........0.1........0.0........0.1........0.1

%e ....1.2.0......1.1.2......1.2.3......0.1.1......1.1.0......0.2.1......2.2.1

%e ...1.1.2.1....3.0.0.2....1.4.2.3....2.1.3.3....1.2.2.1....0.2.1.2....2.1.1.1

%e ..1.2.2.2.1..3.2.2.0.2..5.5.4.6.6..2.2.1.1.3..1.0.0.2.1..2.2.1.2.2..2.1.1.0.0

%K nonn

%O 1,3

%A _R. H. Hardin_ Jul 04 2011