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A223130 Number of 5Xn 0..2 arrays with no more than floor(5Xn/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order 1

%I #4 Mar 15 2013 05:35:42

%S 41,5376,622568,112106293,12483535858,2373042420012,266413907612919,

%T 52026602889237335,5888785066309216678,1169006907613853988993,

%U 133131028198472766703859,26716908349922784017780109

%N Number of 5Xn 0..2 arrays with no more than floor(5Xn/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order

%C Row 5 of A223126

%H R. H. Hardin, <a href="/A223130/b223130.txt">Table of n, a(n) for n = 1..17</a>

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 15 2013

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)