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A222324 Number of nX4 0..1 arrays with exactly floor(nX4/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..1 order 1

%I #4 Feb 15 2013 06:46:21

%S 3,7,19,52,165,835,3307,14419,66213,302731,1350601,6283864,28864821,

%T 132830017,617677553,2862431936,13363660417,62171655121,291908874951,

%U 1362607426103,6418589261153,30080186463929,142028701850239

%N Number of nX4 0..1 arrays with exactly floor(nX4/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..1 order

%C Column 4 of A222328

%H R. H. Hardin, <a href="/A222324/b222324.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 15 2013

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Last modified April 24 07:22 EDT 2024. Contains 371922 sequences. (Running on oeis4.)