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A207554 Number of 6Xn 0..2 arrays avoiding the pattern z-2 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal 1

%I #5 Mar 31 2012 12:37:18

%S 622,386884,153718531,57282563287,21553876840265,8153351029428092,

%T 3082694275519480041,1165102509595020126200,440237796175859581158560,

%U 166342251234958398609975741,62849915005715508846282647469

%N Number of 6Xn 0..2 arrays avoiding the pattern z-2 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal

%C Row 6 of A207550

%H R. H. Hardin, <a href="/A207554/b207554.txt">Table of n, a(n) for n = 1..167</a>

%e Some solutions for n=4

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 18 2012

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Last modified May 10 09:34 EDT 2024. Contains 372377 sequences. (Running on oeis4.)