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A222567 Number of nX2 0..2 arrays with no more than floor(nX2/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order 2

%I

%S 1,1,5,18,59,200,820,3014,11364,42748,164652,627034,2399454,9229494,

%T 35487202,137093302,528389870,2048668614,7920616338,30777407006,

%U 119302534874,464420087686,1804371752146,7034061387558,27382292281570

%N Number of nX2 0..2 arrays with no more than floor(nX2/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order

%C Column 2 of A222573

%H R. H. Hardin, <a href="/A222567/b222567.txt">Table of n, a(n) for n = 1..210</a>

%e All solutions for n=3

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

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

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

%K nonn

%O 1,3

%A _R. H. Hardin_ Feb 25 2013

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Last modified July 2 10:39 EDT 2022. Contains 355004 sequences. (Running on oeis4.)