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%I #5 Mar 31 2012 12:37:05
%S 18148,323806,7051340,144087952,2954664074,60907844595,1253758820754,
%T 25826772963664,531753841353962,10966785381217104,225806941294781192,
%U 4658026215140463264,95926375405868551142,1978420742738282021648
%N Number of (n+1)X5 0..2 arrays with the number of rightwards and downwards edge increases in each 2X2 subblock differing from the number in each of its horizontal and vertical neighbors
%C Column 4 of A205246
%H R. H. Hardin, <a href="/A205242/b205242.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..0..0..2..0..2....2..0..2..1..0....2..1..2..2..0....2..0..0..1..2
%e ..2..0..1..0..0....2..1..2..1..1....0..0..2..0..2....2..2..1..2..1
%e ..0..2..2..1..2....1..0..2..2..2....1..1..2..1..2....0..0..1..2..0
%e ..0..0..0..1..2....2..1..2..1..2....0..1..2..0..1....2..0..1..0..2
%e ..2..2..0..1..1....0..0..2..2..0....0..1..0..1..2....2..0..2..1..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 24 2012
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