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A298091 Number of nX6 0..1 arrays with every element equal to 1, 2, 4 or 7 king-move adjacent elements, with upper left element zero. 1

%I

%S 5,49,33,92,87,171,203,328,484,782,1106,1905,2833,4428,7210,11516,

%T 17938,28859,46630,73610,118590,191530,307255,494129,797251,1286394,

%U 2075589,3359029,5437187,8799802,14259390,23128238,37531667,60964288,99077978

%N Number of nX6 0..1 arrays with every element equal to 1, 2, 4 or 7 king-move adjacent elements, with upper left element zero.

%C Column 6 of A298093.

%H R. H. Hardin, <a href="/A298091/b298091.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=7

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

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

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

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

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

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

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

%Y Cf. A298093.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 12 2018

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Last modified January 25 19:00 EST 2022. Contains 350572 sequences. (Running on oeis4.)