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A305339 Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 5 or 8 king-move adjacent elements, with upper left element zero. 1

%I

%S 64,101,431,3186,23348,176673,1321695,9959836,75112075,566241938,

%T 4269343299,32193597374,242759393636,1830541536206,13803437729415,

%U 104086731979129,784879875501723,5918493129030554,44629209229558533

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

%C Column 7 of A305340.

%H R. H. Hardin, <a href="/A305339/b305339.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..0..1..0. .0..1..0..1..0..0..0

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

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

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

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

%Y Cf. A305340.

%K nonn

%O 1,1

%A _R. H. Hardin_, May 30 2018

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Last modified January 28 11:15 EST 2022. Contains 350655 sequences. (Running on oeis4.)