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A298493 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 4 or 7 king-move adjacent elements, with upper left element zero. 1

%I

%S 64,301,106,263,423,434,628,1067,1267,1943,2973,4583,6623,10201,15735,

%T 23607,37154,58435,88164,137819,219204,340356,535357,850699,1322494,

%U 2078738,3327832,5245963,8287617,13211475,20828700,33025517,52829061

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

%C Column 7 of A298494.

%H R. H. Hardin, <a href="/A298493/b298493.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=9

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

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

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

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

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

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

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

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

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

%Y Cf. A298494.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 20 2018

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Last modified October 20 07:41 EDT 2020. Contains 337897 sequences. (Running on oeis4.)