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A222288 Number of nX6 0..1 arrays with exactly floor(nX6/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..1 order.

%I A222288 #6 Jul 23 2025 02:28:54
%S A222288 4,44,532,6619,89852,1249354,17801910,256986006,3744123550,
%T A222288 55066210090,815041154350,12128319606229,181260757915998,
%U A222288 2718723553039248,40900893166050078,616897705864541974,9325074227006211226
%N A222288 Number of nX6 0..1 arrays with exactly floor(nX6/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..1 order.
%C A222288 Column 6 of A222290
%H A222288 R. H. Hardin, <a href="/A222288/b222288.txt">Table of n, a(n) for n = 1..47</a>
%e A222288 Some solutions for n=4
%e A222288 ..0..0..0..0..0..1....0..0..1..1..1..0....0..0..0..0..0..1....0..0..0..0..0..1
%e A222288 ..0..0..0..0..1..1....0..1..1..1..1..1....1..0..0..0..0..0....0..0..0..0..1..1
%e A222288 ..0..0..0..0..1..0....1..1..1..1..1..0....0..1..0..0..0..0....0..0..0..1..1..0
%e A222288 ..0..0..0..1..1..0....1..1..1..1..1..0....0..1..0..0..0..0....0..0..0..0..1..1
%K A222288 nonn
%O A222288 1,1
%A A222288 _R. H. Hardin_ Feb 14 2013