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A192443 Number of nXnXn triangular binary arrays with every 1 adjacent to exactly 3 other 1s 0

%I #4 Mar 31 2012 12:36:20

%S 1,1,1,1,1,1,1,1,1,2,4,13,35,87,286,908,4080,23994,186034,1891698

%N Number of nXnXn triangular binary arrays with every 1 adjacent to exactly 3 other 1s

%e Some solutions for 12X12X12

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

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

%e ...........0.0.0....................0.0.0....................0.0.0

%e ..........1.1.1.1..................1.1.1.1..................0.0.0.0

%e .........1.1.0.1.1................1.1.0.1.1................0.0.0.0.0

%e ........1.0.0.0.0.1..............1.0.0.0.0.1..............0.1.1.1.1.0

%e .......1.1.1.1.0.1.1............1.1.0.0.0.1.1............0.1.1.0.1.1.0

%e ......1.0.0.1.1.0.1.0..........1.0.1.1.0.0.1.0..........0.1.0.0.0.0.1.0

%e .....1.1.0.0.0.1.1.0.0........1.1.0.1.1.1.1.0.0........0.1.1.0.0.0.1.1.0

%e ....0.1.0.0.0.0.1.0.0.0......0.1.0.0.0.0.1.0.0.0......0.0.1.0.0.0.0.1.0.0

%e ...0.0.1.1.0.1.1.0.0.0.0....0.0.1.1.0.1.1.0.0.0.0....0.0.0.1.1.0.1.1.0.0.0

%e ..0.0.0.1.1.1.1.0.0.0.0.0..0.0.0.1.1.1.1.0.0.0.0.0..0.0.0.0.1.1.1.1.0.0.0.0

%K nonn

%O 1,10

%A _R. H. Hardin_ Jul 01 2011

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Last modified April 24 11:49 EDT 2024. Contains 371936 sequences. (Running on oeis4.)