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Number of nX7 0..3 arrays with no more than floor(nX7/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..3 order
1

%I #4 Feb 21 2013 13:55:06

%S 17,139,2953,267772,4927416,544804117,17557049164,3344195404943,

%T 145842478973059,43014763466911784,2152016451274069352,

%U 684473548396481784093,34905249009694803928802

%N Number of nX7 0..3 arrays with no more than floor(nX7/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..3 order

%C Column 7 of A222479

%H R. H. Hardin, <a href="/A222478/b222478.txt">Table of n, a(n) for n = 1..14</a>

%e Some solutions for n=4

%e ..0..0..0..0..0..0..1....0..0..0..0..1..2..1....0..0..0..0..0..1..2

%e ..0..0..0..0..0..0..2....0..0..0..0..0..0..0....0..0..0..0..3..1..0

%e ..0..0..0..0..1..3..1....0..0..0..0..0..2..0....0..0..0..0..0..0..3

%e ..0..0..0..0..2..2..3....0..0..0..0..0..3..3....0..0..0..0..0..0..2

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 21 2013