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A316640 Number of nX7 0..1 arrays with every element unequal to 1, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero. 1

%I

%S 8,928,4583,44095,532401,5879970,69857903,835457349,9913271027,

%T 118531204693,1418881976069,16953784846473,202779552350007,

%U 2426142918934889,29014644493523399,347062113123737124

%N Number of nX7 0..1 arrays with every element unequal to 1, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 7 of A316641.

%H R. H. Hardin, <a href="/A316640/b316640.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A316641.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 09 2018

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Last modified January 23 21:44 EST 2022. Contains 350515 sequences. (Running on oeis4.)