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Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.
1

%I #4 May 17 2018 09:54:10

%S 5,333,2615,24408,263381,2753404,27769991,285425506,2949991545,

%T 30340096076,311700072509,3208471699212,33025788432538,

%U 339740952430173,3495474272849754,35969390221006522,370105259467117428

%N Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.

%C Column 6 of A304697.

%H R. H. Hardin, <a href="/A304695/b304695.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A304697.

%K nonn

%O 1,1

%A _R. H. Hardin_, May 17 2018