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%I #4 Feb 16 2014 06:35:30
%S 81,1944,81483,7259122,1421887147,486414446352,304213100538740,
%T 404805739208682952
%N Number of (n+1)X(n+1) 0..2 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one
%C Diagonal of A237965
%e Some solutions for n=3
%e ..1..1..1..1....2..0..2..2....1..0..2..1....2..1..1..0....1..1..2..1
%e ..0..1..1..0....1..1..0..1....1..2..0..2....0..2..2..2....1..1..2..0
%e ..0..0..1..2....1..0..0..2....1..1..2..2....0..1..2..2....1..2..0..2
%e ..2..0..1..2....2..1..2..1....1..1..1..2....0..1..2..1....2..2..2..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Feb 16 2014
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