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%I #4 Jan 21 2014 12:28:33
%S 42,1770,232736,98027150,130035577996,547421266314876,
%T 7256435693960552708,303476498154185022737026,
%U 39925368786070957735567191914
%N Number of (n+1)X(n+1) 0..2 arrays with the upper median unequal to the lower median in every 2X2 subblock
%C Diagonal of A236278
%e Some solutions for n=2
%e ..2..1..1....2..2..1....0..1..2....1..2..0....0..1..0....2..0..1....0..2..0
%e ..1..2..2....1..0..0....2..0..0....1..2..1....1..0..1....2..1..0....2..1..0
%e ..0..0..0....2..2..2....0..2..2....2..0..2....2..0..2....2..0..1....0..0..2
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 21 2014