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A207857 Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically 1

%I

%S 40,1600,13230,178088,2047902,24999522,298294290,3584335104,

%T 42968437070,515629329072,6185911022388,74218338931926,

%U 890410143869610,10682416271430446,128158495357747566,1537548202464027744

%N Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically

%C Column 7 of A207858

%H R. H. Hardin, <a href="/A207857/b207857.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 21 2012

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Last modified September 28 06:57 EDT 2021. Contains 347703 sequences. (Running on oeis4.)