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A207665 Number of 7Xn 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 1 0 0 vertically 1

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

%S 35,1225,2748,30440,284108,1296732,12327618,111194040,568720390,

%T 5097396968,44256504494,245572154342,2110910392152,17764389355898,

%U 104925838177000,874050853859324,7172887272193780,44488820281290176

%N Number of 7Xn 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 1 0 0 vertically

%C Row 7 of A207661

%H R. H. Hardin, <a href="/A207665/b207665.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 19 2012

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Last modified June 8 18:04 EDT 2023. Contains 363165 sequences. (Running on oeis4.)