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A231084 Number of 5Xn 0..2 arrays x(i,j) with each element horizontally, diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 3 and at least one element with value (x(i,j)-1) mod 3, and upper left element zero 0

%I #3 Nov 03 2013 10:57:03

%S 0,34,5098,71944,18655220,1782634608,190102522528,24141123135256,

%T 2762980681734360,330052108492665912,39469584963572801752

%N Number of 5Xn 0..2 arrays x(i,j) with each element horizontally, diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 3 and at least one element with value (x(i,j)-1) mod 3, and upper left element zero

%C Row 5 of A231080

%e Some solutions for n=3

%e ..0..3..0....0..3..2....0..1..2....0..1..2....0..3..0....0..3..0....0..1..2

%e ..2..1..2....2..1..2....0..3..0....2..3..0....2..1..2....2..1..0....0..3..2

%e ..0..3..2....0..3..2....2..1..0....0..3..0....1..2..1....2..3..0....2..1..2

%e ..0..3..2....2..1..0....2..1..2....2..1..0....3..0..3....1..2..1....3..0..1

%e ..0..1..0....0..3..2....0..3..0....0..3..2....1..2..3....1..0..3....3..2..1

%K nonn

%O 1,2

%A _R. H. Hardin_, Nov 03 2013

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)