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Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.
1

%I #4 Jul 14 2018 15:16:07

%S 32,1576,33046,811854,20825877,513913591,12835573991,320914969638,

%T 8003158157235,199783413517343,4987095498982872,124471284530963758,

%U 3106865004006385929,77548308031923753562,1935612814492833937289

%N Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

%C Column 6 of A316822.

%H R. H. Hardin, <a href="/A316820/b316820.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A316822.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 14 2018