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

%I #4 Feb 09 2018 08:07:43

%S 32,137,72,233,531,1002,1852,4200,9436,19203,41599,91092,197402,

%T 424019,919358,1989020,4323198,9366316,20311318,44113576,95822090,

%U 208017412,451954480,982013846,2133836248,4637095187,10079156541,21906394802

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

%C Column 6 of A299388.

%H R. H. Hardin, <a href="/A299386/b299386.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=7

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

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

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

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

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

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

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

%Y Cf. A299388.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 09 2018