A222538 - OEIS

%I #4 Feb 24 2013 07:12:52

%S 5,19,70,772,3872,44498,244106,2895313,16220695,193518017,1095187013,

%T 13140785478,74882449329,902437854334,5167965116150,62504530916068,

%U 359312728848315,4358377223219062,25131524034389414,305565415963242588

%N Number of nX5 0..1 arrays with no more than floor(nX5/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order

%C Column 5 of A222541

%H R. H. Hardin, <a href="/A222538/b222538.txt">Table of n, a(n) for n = 1..104</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 24 2013