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

%I #4 Jan 21 2018 06:10:51

%S 5,793,18500,367315,7967553,173576070,3761355239,81677753297,

%T 1774108927621,38529111050778,836821808212497,18175723084272581,

%U 394774116052009271,8574453535228015931,186236792256052520405

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

%C Column 6 of A298547.

%H R. H. Hardin, <a href="/A298545/b298545.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

%Y Cf. A298547.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 21 2018