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A200805 Number of nX4 0..2 arrays with no average of any element and its diagonal, antidiagonal, horizontal and vertical neighbors equal to one 1

%I #5 Mar 31 2012 12:36:40

%S 22,2758,70534,2869182,133370844,5614238516,241586613760,

%T 10524797358824,455021753553562,19693451626359788,853300295005812580,

%U 36950256615064126862,1600124538905865989900,69300200628847585281720

%N Number of nX4 0..2 arrays with no average of any element and its diagonal, antidiagonal, horizontal and vertical neighbors equal to one

%C Column 4 of A200809

%H R. H. Hardin, <a href="/A200805/b200805.txt">Table of n, a(n) for n = 1..189</a>

%e Some solutions for 3X3

%e ..0..0..0..1....0..1..0..1....2..1..0..0....0..1..0..0....1..0..0..1

%e ..2..1..2..0....0..1..1..0....0..0..2..0....0..0..0..1....2..2..2..0

%e ..2..0..0..0....1..1..1..1....0..2..1..0....0..0..1..1....2..0..1..0

%K nonn

%O 1,1

%A _R. H. Hardin_ Nov 22 2011

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Last modified April 23 09:22 EDT 2024. Contains 371905 sequences. (Running on oeis4.)