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%I #4 Jan 02 2015 10:26:17
%S 27000,1066300,44943722,1878758740,78770049974,3299718630574,
%T 138306215163096,5795836568371696,242904782424601668,
%U 10179772843302464230,426626399166621668992,17879460458074006160518
%N Number of (4+1)X(n+1) 0..2 arrays with every 2X2 subblock ne-sw antidiagonal difference unequal to its neighbors horizontally and nw+se diagonal sum unequal to its neighbors vertically
%C Row 4 of A253482
%H R. H. Hardin, <a href="/A253485/b253485.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=1
%e ..0..1....0..1....1..0....1..1....2..0....0..0....2..1....0..0....1..0....1..1
%e ..0..2....1..0....1..2....2..0....1..2....1..2....1..0....1..2....1..2....1..2
%e ..1..0....1..0....1..0....0..1....0..2....0..2....0..2....0..2....2..0....2..0
%e ..2..2....0..2....2..2....2..1....1..1....0..1....1..2....2..0....2..0....0..2
%e ..0..2....0..2....1..2....2..0....2..1....0..0....1..0....0..0....1..1....1..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 02 2015
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