A222325 - OEIS

%I #4 Feb 15 2013 06:50:16

%S 4,0,0,165,674,3770,15100,172590,759758,6657106,30994294,298933498,

%T 1368656291,12779873412,59202186592,560870492027,2605855916653,

%U 24609622243330,114661599066810,1086770275159481,5073242396321810

%N Number of nX5 0..1 arrays with exactly floor(nX5/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..1 order

%C Column 5 of A222328

%H R. H. Hardin, <a href="/A222325/b222325.txt">Table of n, a(n) for n = 1..110</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 15 2013