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Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.
1

%I #4 Jul 18 2018 19:25:42

%S 32,1576,26952,551591,11158663,223714229,4522081307,91395911298,

%T 1845641069555,37298623188716,753693898789280,15229455120282527,

%U 307749321248182758,6218778281436089176,125664631586446141764

%N Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.

%C Column 6 of A317004.

%H R. H. Hardin, <a href="/A317002/b317002.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A317004.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 18 2018