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A317894 Number of nX6 0..1 arrays with every element unequal to 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1

%I

%S 0,16,252,3697,67792,1184196,20734591,364026326,6382316173,

%T 111913142446,1962613676956,34416957636316,603541836561491,

%U 10583875184727438,185601684107768342,3254759127437027807,57076308019918523999

%N Number of nX6 0..1 arrays with every element unequal to 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Column 6 of A317896.

%H R. H. Hardin, <a href="/A317894/b317894.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A317896.

%K nonn

%O 1,2

%A _R. H. Hardin_, Aug 10 2018

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Last modified May 27 16:48 EDT 2022. Contains 354110 sequences. (Running on oeis4.)