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A317893 Number of nX5 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 0,5,59,549,6193,67792,741031,8119416,88900423,973425343,10659656523,

%T 116727563443,1278205487608,13996816969414,153270295230335,

%U 1678365696618678,18378717159170458,201253665901097643

%N Number of nX5 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 5 of A317896.

%H R. H. Hardin, <a href="/A317893/b317893.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..0..1..0. .0..1..0..1..1. .0..1..0..0..0

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

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

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

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

%Y Cf. A317896.

%K nonn

%O 1,2

%A _R. H. Hardin_, Aug 10 2018

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Last modified July 2 16:36 EDT 2022. Contains 355029 sequences. (Running on oeis4.)