A251071 - OEIS

%I #4 Nov 29 2014 18:21:55

%S 3935721,634161915,44280784440,1731036678270,44184817939580,

%T 813777827212550,11583623256480548,133881601767192816,

%U 1303359284227317194,10991187869604621942,82068339562605570512

%N Number of (7+1)X(n+1) 0..2 arrays with no 2X2 subblock having x11-x00 less than x10-x01

%C Row 7 of A251065

%H R. H. Hardin, <a href="/A251071/b251071.txt">Table of n, a(n) for n = 1..84</a>

%e Some solutions for n=1

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

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

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 29 2014