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A283344 Number of nX5 0..1 arrays with no 1 equal to more than two of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element. 1

%I #4 Mar 05 2017 10:21:58

%S 0,120,4398,106310,2519010,55886238,1199035122,25121756412,

%T 516765464924,10481845883142,210231077785162,4177968654531772,

%U 82397091799471253,1614546135120979278,31461824683588609937,610146651185924046854

%N Number of nX5 0..1 arrays with no 1 equal to more than two of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element.

%C Column 5 of A283347.

%H R. H. Hardin, <a href="/A283344/b283344.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%Y Cf. A283347.

%K nonn

%O 1,2

%A _R. H. Hardin_, Mar 05 2017

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Last modified December 10 12:10 EST 2023. Contains 367710 sequences. (Running on oeis4.)