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

%I #4 Jun 02 2018 09:01:29

%S 5,157,295,125,7007,23229,52124,581383,2463954,8570618,56143574,

%T 267901337,1116868133,6024191561,29624539835,134241410418,

%U 674874922277,3322616624721,15652901052092,76798796724976,376381323915795

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

%C Column 6 of A305489.

%H R. H. Hardin, <a href="/A305487/b305487.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A305489.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jun 02 2018