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A230475 Number of 7Xn 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 upper left element zero 0

%I

%S 0,386,2647098,3045192312,2412390974650,2147475302085202,

%T 1929668277796729476,1740277427965068258778,1566684273436028817518446

%N Number of 7Xn 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 upper left element zero

%C Row 7 of A230469

%e Some solutions for n=3

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

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

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

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

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_, Oct 20 2013

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Last modified October 7 12:03 EDT 2022. Contains 357271 sequences. (Running on oeis4.)