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A222629 Number of nX2 0..1 arrays with no more than floor(nX2/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..1 order 1

%I #4 Feb 26 2013 21:42:40

%S 1,1,3,10,22,49,121,316,779,1921,4813,12224,30853,77944,197609,502916,

%T 1280453,3263803,8331482,21300797,54509660,139622191,357960169,

%U 918555828,2358870680,6061898813,15588393421,40111331758,103272011299,266030741706

%N Number of nX2 0..1 arrays with no more than floor(nX2/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..1 order

%C Column 2 of A222635

%H R. H. Hardin, <a href="/A222629/b222629.txt">Table of n, a(n) for n = 1..210</a>

%e All solutions for n=3

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

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

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

%K nonn

%O 1,3

%A _R. H. Hardin_ Feb 26 2013

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Last modified July 18 00:08 EDT 2024. Contains 374377 sequences. (Running on oeis4.)