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A305953 Number of nX7 0..1 arrays with every element unequal to 0, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero. 1

%I

%S 1,908,14652,705763,30700722,1406191296,64233268442,2949134027463,

%T 135468194522667,6227151177165463,286296487893592313,

%U 13164179576247841689,605327650429289802592,27835345940539704996531

%N Number of nX7 0..1 arrays with every element unequal to 0, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.

%C Column 7 of A305954.

%H R. H. Hardin, <a href="/A305953/b305953.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A305954.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jun 15 2018

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Last modified February 5 00:04 EST 2023. Contains 360082 sequences. (Running on oeis4.)