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Number of nX6 0..3 arrays with exactly floor(nX6/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..3 order
1

%I #4 Feb 23 2013 17:23:16

%S 8,114,1302,26513,459702,15047384,403328822,32347515041,1232881699540,

%T 121450541699548,4853507073442748,493976449729124341,

%U 19993012391256769246,2032635985704237437326,82875504826818513459334

%N Number of nX6 0..3 arrays with exactly floor(nX6/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..3 order

%C Column 6 of A222522

%H R. H. Hardin, <a href="/A222520/b222520.txt">Table of n, a(n) for n = 1..25</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 23 2013