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A317035 Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero. 1

%I

%S 64,752,2591,33798,417156,4939166,64983838,900623946,12923660734,

%T 186496571520,2743455526628,40953644119385,610958839980222,

%U 9168732518369501,138157741872448535,2080038991736467931

%N Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

%C Column 7 of A317036.

%H R. H. Hardin, <a href="/A317035/b317035.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A317036.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 19 2018

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Last modified July 30 07:49 EDT 2021. Contains 346348 sequences. (Running on oeis4.)