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A318549 Number of nX5 0..1 arrays with every element unequal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1

%I

%S 3,21,44,219,842,3172,12073,49181,191426,766695,3049529,12107020,

%T 48250678,192019906,764373285,3043515961,12116244368,48238515390,

%U 192056199827,764631673154,3044276102274,12120342053719,48255337743357

%N Number of nX5 0..1 arrays with every element unequal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Column 5 of A318552.

%H R. H. Hardin, <a href="/A318549/b318549.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A318552.

%K nonn

%O 1,1

%A _R. H. Hardin_, Aug 28 2018

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Last modified September 28 08:27 EDT 2022. Contains 357068 sequences. (Running on oeis4.)