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%I #4 Jan 18 2014 13:47:58
%S 81,1126,13750,95848,805458,5805712,46936958,297400544,2301395022,
%T 14676949336,112821800002,703842426432,5358265271090,33699329986640,
%U 255391459490526,1606272713154432
%N Number of (n+1)X(n+1) 0..2 arrays colored with the sum of the maximum and minimum values of each 2X2 subblock
%C Diagonal of A236018
%e Some solutions for n=4
%e ..0..2..1..1..2....1..1..1..2..2....2..1..1..1..2....1..1..2..0..1
%e ..0..1..1..1..2....0..1..1..1..0....0..0..1..1..2....1..1..1..0..0
%e ..1..1..1..0..1....2..2..1..1..0....0..1..2..1..0....0..1..1..1..2
%e ..1..1..2..1..0....2..1..0..1..2....2..2..1..0..1....2..2..1..1..2
%e ..1..0..1..2..0....2..0..1..2..1....2..2..0..0..2....1..1..0..1..0
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 18 2014
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